1.when the body moves in a straight line 2.speed; velocity rate of change of distance rate of chancge of displacement scaler quantity vector quantity 3.complete one round=60 seconds & diameter=14m radius=diameter/2 radius=14/2=7m distance= 2*pi*r =2*3.14*7 =43.9 SPEED; =distance/time =43.9/60 =0.73 m/s velocity; =displacement/time =0/60 =0 m/s Hope it helps!!
1. When the journey is in a straight line. 2. Speed is scalar and velocity is vector. Speed=Distance/Time, Vector=Displacement/Time 3.Circumference=44m, Time=60 secs Avg. Speed=11/15 m/s Avg. Velocity=0 m/s
My answers: Q1: Distance is equal to displacement when the objective is back on it's starting point. Q2: Speed is the distance divided by time and using scale and velocity is using displacement divided by time and using vector. Q3: The boy has an average speed of 4.2 m/ps, and his average velocity is 4.2m/ps. PS. I had this shown in my class last week, and eventually I decided to subscribe. Good job, man! 👍
Thanks!! Happy to hear that you liked the video and thanks for subscribing :) Q2 answer is correct ! Q1 answer will be when object is moving in a straight line: distance = displacement. Q3, here is the solution: Average speed = total distance / total time. Total distance will be perimeter of circle since boy completes the circle. Right? Perimeter = 2 x pi x r. r = radius of circle Diameter = 14 m. So radius = 7 m So total distance = 2 x 22/7 x 7 = 44 m Total time = 1 min = 60s (convert to SI units 's') So average speed = 44 m/60s = 0.73 m/s Now, average velocity = total displacement / total time. Since boy completes the circle he is back to same position. So total displacement = zero! So average velocity = 0 m/s.
Q1: when an object move in straight line then displacement and distance is equal. Q2:speed is scalar quantity and velocity is vector quantity Speed have no any direction move a body in any direction and distance can be easily calculated Velocity have magnitude well as Direction so velocity depend on direction Q3:avg speed 44 Avg velocity is zero.
Very good!! Q1 and Q2 answers are correct :) Q3 average speed is 44/60 m/s or 0.73 m/s. Average velocity is correct! For Q2 another difference is speed is rate of change of distance and velocity is rate of change of displacement.
1)when distance of an object in straight line. There distance=displacement. 2)SPEED: speed has no specific direction. speed is scalar quantity. VELOCITY: velocity has specific direction. velocity is vector quantity. 3) average speed of the boy=0.73 here,the boy is coming to his initial position. So the displacement of the boy is 0. We know if displacement is zero velocity is also zero. Thank you sir ❤️❤️
Ans.1 when the body is at rest and displacement is 0 2.speed is scalar and velocity is vector the difference b/w their definitions 3.diameter÷2=7m(radius) Avg.speed =distance÷time =0.73m/s Avg.velocity=0m/s Thanku so much sir it is really helpful
«Avg.speed =distance/time =0.73m/s» - except radius and distance are two entirely different parameters. To get the distance, first one has to calculate circle's length or perimeter (P). The formula is: P=2πr, hence the distance equals: 2 * 3.14 * 7 = 44m, which you then use to determine the average speed.
1. when they are in stright line from initial point to final point 2.speed is scalar and distance/time velocity is vector and displacment/time 3. avg speed = 0.73m/s avg velocity = 0
Q1 Ans. When path lenth is in straight line. Q2 Ans. First difference is speed is scalar quantity and velocity is a vector quantity. Second diffrance is speed always be positive quality and velocity could be in positive negative and zero quantity. Q3. Ans. Average speed is 0.76 m/s Average velocity is 0 m/s. Lot of thank you so much sir.... For understanding this concept with wonderful question....... Thanks
@Raj Kumar, Happy to hear that you liked the video! Thanks :) All your answers are correct, except average speed in Q3 should be 0.73 m/s. You can also try the Quiz questions for this video and other videos on my website: www.manochaacademy.com
Ty sir awesome video. I would like to watch more videos of u. Ans 1 = distance and displacement is equal when u are travelling in same direction not changing your path like from 1 town to another which has its route in one and straight direction. Ans 2 = *_SPEED_* 1. Speed is a scalar quantity 2. Speed has no direction *_VELOCITY_* 1. Is a vector quantity 2. We need to write a fixed direction in velocity. ANS 3 = speed is 88 m/s Velocity is 0 m/s because of 0 displacement. Once again ty sir
1-when both are in a straight line 2-speed=distance/time, scalar. & velocity=displacement/time , it is a vector quantity 3-total distance/total time =πd/t =(22/7*14)/60 =0.73 m/s Total displacement/total time =0/60 =0m/s
My opinion:- Ans 2) Speed don't have a direction. It is distance upon time. Velocity have a direction. It is displacement upon time Ans3) R=7m Formula = 2πr 2×22/7×7 = 44m Hence average speed is 44m divide by 60sec is 7.333....m/s whereas average velocity is 0 m/s ( as he is moving in a circular path)
1. Distance is equal to displacement when a body travels along a straight line path. 2. Speed is a scalar quantity whereas velocity is a vector quantity. Speed just needs its magnitude to have a complete meaning while velocity needs both magnitude and direction to have a complete meaning. 3. Average speed= 0.73 m/s Average velocity= 0 Thanks for the video sir, I had a fun revision.
Q3. (i)Answer is O.73333 m/s D is given = 14m Radius=d/2 R=14/2=7 R=7 Circumference= total distance of path 2πr=2×22/7×7,2×22= 44 S= d/t,44/60 = 0.7333 m/s (ii)velocity = displacement/time Initial and final position is same so velocity will be = 0
Best vedio on RUclips on these topics. I think the answers should be:- 1) Distance is equal to displacement when we take the shortest path to travell from one place another. 2) •Speed is the rate of change of distance whereas velocity is the rate of change of displacement. •Speed is a scalar quantity whereas velocity is a vector quantity. 3. Average speed = 0.733m/s and Average velocity = 0
1) when the body motion in straight line 2)speed=scalar, distance/T Velocity=vector, displacement/T 3)2¶R=2×22/7×7=44, AVG SPD=44/60 m/s AVG VELOCITY =ZERO final POINT and intitial point same
Q1. When a body is moving in straight line then the distance is equal to displacement . Let's suppose ....... A body travels from point A to B in a straight line and the distance between A to B is 40m then the displacement will also be 40 m because. The shortest distance between Initial position and final position is AB itself. A ._____________________________.B Q2. Speed:--- 1.speed is a sclar quantity. 2. Speed= distance/ time 😁 Velocity:--- 1. Velocity is a vector quantity 2. Velocity= displacement/time 😁 Q 3. Given;-- diameter of circle= 14m Therefore; radius will be 7m Now the circumference of circle is 44m . Average speed= total distance/ total time =→ 44m/1minute __. 44/60= 0.733m/s Now, average velocity= total displacement/total time Total displacement is 0m because his initial position and final position both are same . Now average velocity= 0m/1minute 0m/60sec = 0m/s Therefore . Average speed= 0.733m Average velocity= 0m/s 🤗🤗🤗🤗🤗🤗😘😘😘🥰🥰🥰🥰. If my ans is correct then plz sir ☺️ pin my comment.....
Ans 1- In uniform motion (moving in straight line. Ans2-i) speed depends on distance Where velocity depends on both distance and direction ii) speed =scalar, velocity=vector Ans3- Avg. Velocity =0m/s Avg. Speed =total time /total distance. Total distance=circumference of circle, D=C=2πr, =2x22÷7x7=44m Avg. Speed =44÷60=0.73m/s.
Excellent!! All your answers are correct :) Also try the Quiz for this video on my Website. Quiz button is below the video: www.manochaacademy.com/physics/motion/l/distance-displacement-speed-velocity-1
1) only when moving in a straight line. 2. a) speed is the rate of change of distance while velocity is rate of change of displacement. 2. b) speed has only magnitude while velocity has both magnitude and direction 3) Average speed = 44 ÷ 60seconds 0,73/sec Average Velocity = 0
it's been two years since this video was uploaded and you're still replying to comments and helping us out. This shows how dedicated you are to teach people. Thank you sir!
Qno1= distance can be equal to displacement if the body travel in a straight path. Qno2= speed. | velocity = speed is scalar quantity. | velocity is a vector quantity. =Speed cannot be negative | velocity can be negative = speed cannot be zero | velocity can be zero Qno3= 0.777777777777777 or 0.8 m/s. All are correct. Thanks a lot❤
ans 1 = distance is equal to displacement only when object is travelling in a straight line with constant motion . ans 2 =speed is distance per unit time velocity is displacement per unit time speed is a scalar quantity velocity is a vector quantity ans 3 = total distance covered = πd = 22/7 *14 = 44 m total time taken = 1 min = 60 sec total speed = total distance / total time taken = 44 / 60 = 0.73 m/sec total displacement = 0 m/sec total time = 60 sec total velocity = total displacement / total time covered = 0/60 = 0 m/sec
Q1 - When both objects are travelling in a straight line. Q2- Speed is distance and no direction (Scalar) Velocity is displacement and has direction (Vector) Q3 - Distance = about 42 m so speed = 42 m/60 s = (about) 0.7 m/s average velocity = 0m/s
Answer:1 distance is having magnitude and displacement is having both magnitude and distance and would be same when they are traveling in the same linear path. Answer 2: Speed = Distance/Time and but it has no direction whereas Velocity= Displacement/Time and it's having a direction. Answer 3: average speed= 44/60=11/15 m/s and average velocity= 0/60 = 0m/s.
Sir , please do lectures for class 11. You are one of the great teacher who inspires students to love the subjects and also we understand your teaching , you explains every concept crystal clear . It's a humble request.
Thanks a lot :) Yes, I am making a WebApp : www.manochaacademy.com . Right now it's just a basic Home Page with videos categorised by subject. I'll be adding more practice questions and features soon!! :)
1. When object moves on a straight line. 2. Speed is a scalar quantity which only shows magnitude and velocity is a vector quantity which shows both magnitude and direction. 3. distance = π × d (circumference) = π × 14 time = 1min = 60s speed = distance/time = π × 14 / 60 = 0.73 m/s displacement = 0 (complete the circle so) time = 1 min = 60s velocity = displacement/time = 0/60 = 0 m/s I have physic exam tmr😍
(3) Total distance = Circumference of the circle = π×d = (22/7)×14 = 44 m. Total time = 1 min = 60 seconds. Average speed = 44/60 = (11/15) m/s. Now, total displacement = 0 (the boy returns to initial point) Average velocity = 0/60 = 0 m/s.
Q1) When the body is in a straight line Q2) Speed is equal to distance ÷ time while velocity is equal to displacement ÷ time and speed is a scalar quantity while velocity is a vector quantity. Q3) average speed=0.733 m/s and average velocity=0
Q1:alone a straight line Q2:speed is a scalar quantity and velocity is a vector quantity. Speed consists only of magnitude but velocity consists of both magnitude and direction. Q3:the average speed is 0.2m/s and the average velocity is 0m/s.
1) distance : length of the path travelled Displacement: distance between initial point to final point 2) speed : scalar quantity, no direction Velocity: vector quantity, has direction 3) average speed: 44/1 = 44 average velocity: 0
Answer for question 1 is when the object moves in straight line question 2 answer is speed is scalar and velocity is vector and speed is the rate of distance travelled and velocity is the rate of displacement question 3 answer is 14 m is diameter distance is 2×22/7*7=44 m distance time is 60s S= 44/60=0.73 bar displacement is zero .that's it my name is jindam keerthana
1st: Distance is equal to displacement when a body travel through the shortest path. 2nd: speed- speed is the distance covered by a body in certain time . Speed- speed is a scalar quantity Velocity: VELOCITY is the displacement by a body in certain time. Velocity: it is a vector quantity 3rd: speed- 44m/60 sec Velocity-14m/time
1. When there is only one path available to reach the end point the distance and displacement is same because that is the shortest path. 2. Speed is the rate of change of speed. It is a scalar quantity. Velocity is the rate of change of displacement. It is a vector quantity. 3. Average speed = 44m/60 s = 0.733 m/s Average velocity = 0m/60s = 0m/s
Answer 1- Distance is equal to displacement when the object is in a straight line from initial position to final position. Answer 2-speed - a- scaler b- S.I. unit is m per second - velocity-a- vector -b- S.I. unit is m per second Answer 3 - average speed is 2×22/7×7=44 Then divide 44/60 =0.73 Average velocity=0/60=0 because the object comes start from initial position then come to its initial position that why we say that displacement is 0.....
1. When a body travel in a straight line. 2. Speed is scalar quantity . Velocity is a vector quantity. Speed is the rate of change of distance . Velocity is the rate of change of displacement . 3. We need to find the circumference c = 2pi r . To find r we need to divide 14 by 2.
1.When initial velocity and final velocity is same 2. 1, speed is rate of change of distance 2, speed is scalar quantity 1, velocity is rate of change of displacement 2,velocity is vector quantity
1-> when both are zero . 2-> i] Speed is a scalar quantity and velocity is a vector quantity. ii] Speed is rate in change in distance but velocity is rate in change in displacement.
I am surprised on how you still replying comments onto these days. It show the dedication you had toward teaching. Thank you , you are a wonderful person.
Q1. Distance and displacement can only be the same in the object is moving in uniform motion Q2. Speed is distance / time and velocity is displacement / time and speed is a scalar quantity and velocity is a vector quantity. Q3. 14 X 3.14 = 43.96 43.96 / 60 = 0.73266667 average speed. 0 / 60 = 0 average velocity.
1.Distance is equals to displacement when it travels in @ straight path and can't return. 2.Speed is a scalar quantity. Speed doesn't have fixed direction .. Velocity is a vector quantity. Velocity has both magnitude and direction. 3.Average Speed=1.46 m/s Average Velocity=0m/s
Ans-1 when the object is going to in straight line then distence & displacement will be equal... Ans-2 speed-(1)scaler (2)no need to direction Velocity-(1) vector(2)need to direction Ans-3 44/60=22/30=0.73 Sir i'm from hindi medium so please make a video in hindi & english sothat we can also watch your videos ..whose pepople are from hindi medium....
Question 1: When the distance and displacement is traveling in a straight motion in the same direction from initial to final position. Question 2: Speed is for rate of change in distance, it is a scalar and has no direction. Velocity is for rate of change in displacement, it is a vector and has direction. Question 3: Given; t = 60 sec; diameter is 14 m going back and forth the displacement will be 28 m The diameter is the length of the circumference that is a straight line in between of it so basically is it the length of the displacement multiply by 2 because he finish the circumference. To find the average speed you need to find the meter of the circumference. c = πd c = (3.14)(14 m) = 43.96 m Average speed = 43.96 m/60 s = 0.73 m/s Average velocity = 28 m/60 s = 0.467 m/s This is what I understand
Bro the velocity is equal to zero. Because the initial and the final positions are the same . V= x final _ x initial / time V= 14 _ 14 / time V = 0/ time V=0
Ans 1= when an object moves in a straight line distance =displacement Ans2= speed rate of change of distance Scalar quantity Velocity Rate of change of displacement Its a vector quantity Ans 3= avg speed-0.73333....m/s Avg velocity-0 m/s
(Answer of Q1) Distance is equal to displacement when a body travels from the initial position to the final position in a straight line . (Answer of Q2) Speed is a scalar quantity, but velocity is a vector quantity.speed cannot be zero but velocity can be zero. (Answer of Q3) Average speed=total distance/ total time The distance traveled by the boy is the circumference of the circle. circumference=2 X pi X r r=diameter/2 =(2 X 22/7 X 7)m =14m/2 =44m =7m time=1minute =60second So, average speed=44m/60s =0.73m/s Average velocity=total displacement/total time The displacement is 0m (because the initial position and the final position are the same). Hence, average velocity=0m/60s =0m/s
Q.1] Distance is equal to displacement when the object is travelling in a straight path. Q.2] Speed : Rate of change of distance, Scalar quantity Velocity : Rate of change of displacement, Vector quantity Q.3] Avg speed : total distance/total time πd / 60 sec = 22/7 × 14 / 60 = 44/60 = 22/30 m/s Avg velocity : total displacement/total time 0/60 = 0 m/s I hope my answers are correct..✌🏻🤞🏻
Q 1)when a body is travelling in a straight line Q 2) speed is scalar and it is rate of change of distance. While velocity is vector and it is rate of change of displacement. Q 3) Average speed 14/60= 0.23 And Average velocity 0/60=0 displacemet is 0 coz the boy is travelling in a circle
Diameter of the circle track = 14 m Radius of the circle track (r) = 14 m / 2 = 7 m Time taken to complete one circle = 1 minute = 60 seconds Total distance covered: The boy runs around the entire circle, so the distance covered in one lap is equal to the circumference of the circle.Circumference (C) = 2πr 𝐶 = 2 × 𝜋 × 7 = 14 𝜋 C=2×π×7=14π meters Average speed: Average speed is the total distance covered divided by the total time taken.Average speed = Total distance / Total timeAverage speed = 14 𝜋 60 60 14π m/sLet's calculate the numerical value:Average speed ≈ 14 × 3.14 60 60 14×3.14 m/s ≈ 43.96 60 60 43.96 m/s ≈ 0.7327 m/s (approximately) Displacement: Displacement is the straight-line distance between the initial and final positions.In this case, the boy returns to the starting point, so his displacement is zero. Average velocity: Average velocity is the displacement divided by the total time taken.Average velocity = Displacement / Total timeAverage velocity = 0 60 60 0 m/sSince the displacement is zero, the average velocity is also zero. So, the average speed of the boy is approximately 0.7327 m/s, and his average velocity is 0 m/s
1)when object is moving straight line 2)velocity= it is a vector quality And it has magnitude And direction Speed= it is scalar quantity And it has only magnitude 3) distance =14 diameter Radius=7m Time=1m=60s S=d -- T On circular path d=2 22/7×r 2 ×22/7×7 =44 S=44/60 =0.7333_ _m/s V=d/t D=0 V =0
1 The distance is equal to velocity when the motion is in the straight line 2speed:scalar quantity velocity :vector quantity speed is distance moved per unit time velocity is rate of change of displacement radius =14/2=7 circumference 44/60=0.73 velocity =0
Q1. If a distance is having direction than it is equal to displacement. Q2. Speed: - •It has no direction only magnitude. •It is scalar quantity. Velocity: •It has both direction and magnitude. •It is vector quantity. Q3. Given: Time=60s diameter=14 (r=14/2=7) Distance? Displacement? :- To find the total distance =circumference ofcircular track Circumference=2πTr (2×22/7×7)= 44 m Total Distance= 44m Total Displacement=0 Avg. speed=44m/60s =0.7m/s Avg.velocity=0m/60s =0m/s Thank you
LISTEN! LISTEN! I solved it i got the avg velocity right as yours but in the first part where it was asked to find out avg speed I multiplied 2 pie r=3.14 with 14m and got 43.96 which I divided by 60s and the final ans was 0.732 round of 1m/s
for q1. If both the distance and displacement are having the same path of length to be traveled then it will be the same for q2. velocity is vector while speed is scalar to obtain velocity we divide displacement over time while for speed we divide distance over time please point out my mistakes and tell me why they are incorrect, it'll be helpful, thnks
Q 1. When a body is travelling in a straight line. Q 2. Speed is scale quantity and velocity is a vector quantity Speed is the rate of change in distance & Velocity is the rate of change of displacement. Q 3. Diameter = 14 m so radius will be 7 m as. Radius is half of the diameter So the perimeter of park will be 43.96m or 44m by rounding off and His time is 1 minute or 60 seconds therefore the speed will be 44/60 = 0.73 metres per second.
Question no. 1 answer) it's travelling in a straight line. 2) Speed It's scalar quantity Rate of change of distance Velocity Its vector quantity Rate of change of displacement 3) average speed= 44/60m per second Average velocity= 0 please answer I'm correct or not
1ans = when a body moves in straight line and in particular direction 2 ans = speed is a scalar and velocity is a vector quantity velocity has magnitude and direction , speed has only magnitude 3ans= average speed = 11/15m/s or 0.73m/s average velocity = 0m/s
Circumference of circle =2πr 2×22/7×7 (radius=14/2=7) =44m So, average speed= Total distance/total time =44/60 =0.73m/s Now, average velocity= displacement/time taken =0/60=0m/s
A1. Distance = displacement when the object is travelling in a straight line. A2.a)Speed = Distance/Time Velocity = Displacement/Time b)Speed = Rate of change of distance Velocity = Rate of change of displacement A3.Average Speed = 0.73m/sec Average Velocity = 0
Q1. Distance and displacement are equal if the path taken is a straight line. Q2. Speed is a scalar and it is distance/time. While velocity is a vector and it is displacement/time. Q3. The average speed is 0.73m/s while the average velocity is zero(0)
Q1-In a Straight line motion Q2-Speed is Scalar but Velocity is a Vector and Speed can be negative but Velocity cannot be negative Q3-Average Speed is 0.733m/s and Average Velocity is 0m/s
@@kasirajannagarani172 average speed is calculated by average displacement but here as the particle again reaches to initial point so displacement covered by the particle is 0 therefore average velocity is also 0
Ans.1. When the initial and final position is same. Ans.2 . Speed is scaler quantity Velocity is vector quantity Speed =distance\time Velocity=displacement\time Ans.3 Average speed= 14 Average velocity=0
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Ok sir
Brilliant
Ok sir
1.when the body moves in a straight line
2.speed; velocity
rate of change of distance rate of chancge of displacement
scaler quantity vector quantity
3.complete one round=60 seconds & diameter=14m
radius=diameter/2
radius=14/2=7m
distance= 2*pi*r
=2*3.14*7
=43.9
SPEED;
=distance/time
=43.9/60
=0.73 m/s
velocity;
=displacement/time
=0/60
=0 m/s
Hope it helps!!
Thanks buddy
Thanks guy.
Wrong answer average v=0.11 and speed =0.23
Yes bro you are right answer is 0.23
Can you please explain the answer😊@@SuryaSingh-hm6pq
1. When the journey is in a straight line.
2. Speed is scalar and velocity is vector.
Speed=Distance/Time, Vector=Displacement/Time
3.Circumference=44m, Time=60 secs
Avg. Speed=11/15 m/s
Avg. Velocity=0 m/s
When I saw the thumbnail I thought it was Akshay Kumar 😅
Yes me too
Me too
Yes you are literally right 👍 me too..
Mee also bro😅😅😅
Me tooo
Wow even Byjus can't teach concepts this easy. Manocha Academy is great.
Thanks for liking
True
Very true!😅
Is worst
Is great true...bro
My answers:
Q1: Distance is equal to displacement when the objective is back on it's starting point.
Q2: Speed is the distance divided by time and using scale and velocity is using displacement divided by time and using vector.
Q3: The boy has an average speed of 4.2 m/ps, and his average velocity is 4.2m/ps.
PS. I had this shown in my class last week, and eventually I decided to subscribe. Good job, man! 👍
Thanks!! Happy to hear that you liked the video and thanks for subscribing :)
Q2 answer is correct !
Q1 answer will be when object is moving in a straight line: distance = displacement.
Q3, here is the solution:
Average speed = total distance / total time. Total distance will be perimeter of circle since boy completes the circle. Right?
Perimeter = 2 x pi x r. r = radius of circle
Diameter = 14 m. So radius = 7 m
So total distance = 2 x 22/7 x 7 = 44 m
Total time = 1 min = 60s (convert to SI units 's')
So average speed = 44 m/60s = 0.73 m/s
Now, average velocity = total displacement / total time.
Since boy completes the circle he is back to same position. So total displacement = zero!
So average velocity = 0 m/s.
Q1: when an object move in straight line then displacement and distance is equal.
Q2:speed is scalar quantity and velocity is vector quantity
Speed have no any direction move a body in any direction and distance can be easily calculated
Velocity have magnitude well as
Direction so velocity depend on direction
Q3:avg speed 44
Avg velocity is zero.
Very good!! Q1 and Q2 answers are correct :) Q3 average speed is 44/60 m/s or 0.73 m/s. Average velocity is correct!
For Q2 another difference is speed is rate of change of distance and velocity is rate of change of displacement.
Thank you sir
You're welcome!
1)when distance of an object in straight line. There distance=displacement.
2)SPEED:
speed has no specific direction.
speed is scalar quantity.
VELOCITY:
velocity has specific direction.
velocity is vector quantity.
3) average speed of the boy=0.73
here,the boy is coming to his initial position. So the displacement of the boy is 0. We know if displacement is zero velocity is also zero.
Thank you sir ❤️❤️
Good job
good correct answer
Ans.1 when the body is at rest and displacement is 0
2.speed is scalar and velocity is vector the difference b/w their definitions
3.diameter÷2=7m(radius)
Avg.speed =distance÷time =0.73m/s
Avg.velocity=0m/s
Thanku so much sir it is really helpful
«Avg.speed =distance/time =0.73m/s» - except radius and distance are two entirely different parameters. To get the distance, first one has to calculate circle's length or perimeter (P). The formula is: P=2πr, hence the distance equals: 2 * 3.14 * 7 = 44m, which you then use to determine the average speed.
1. when they are in stright line from initial point to final point
2.speed is scalar and distance/time
velocity is vector and displacment/time
3. avg speed = 0.73m/s
avg velocity = 0
Q1
Ans. When path lenth is in straight line.
Q2
Ans. First difference is speed is scalar quantity and velocity is a vector quantity.
Second diffrance is speed always be positive quality and velocity could be in positive negative and zero quantity.
Q3.
Ans. Average speed is 0.76 m/s
Average velocity is 0 m/s.
Lot of thank you so much sir.... For understanding this concept with wonderful question....... Thanks
@Raj Kumar, Happy to hear that you liked the video! Thanks :)
All your answers are correct, except average speed in Q3 should be 0.73 m/s.
You can also try the Quiz questions for this video and other videos on my website: www.manochaacademy.com
Ty sir awesome video. I would like to watch more videos of u.
Ans 1 = distance and displacement is equal when u are travelling in same direction not changing your path like from 1 town to another which has its route in one and straight direction.
Ans 2 =
*_SPEED_*
1. Speed is a scalar quantity
2. Speed has no direction
*_VELOCITY_*
1. Is a vector quantity
2. We need to write a fixed direction in velocity.
ANS 3 = speed is 88 m/s
Velocity is 0 m/s because of 0 displacement.
Once again ty sir
How did you get the third ans?
@@faraz9627 by calculating
@@ishangupta6056 can u explain the speed ans? I'm not getting 88m/s
1-when both are in a straight line
2-speed=distance/time, scalar.
& velocity=displacement/time , it is a vector quantity
3-total distance/total time
=πd/t
=(22/7*14)/60
=0.73 m/s
Total displacement/total time
=0/60
=0m/s
I'm working through physics currently, and these videos are very helpful. Helping me understand concepts better. Keep them coming!
Thanks for liking
My opinion:-
Ans 2) Speed don't have a direction.
It is distance upon time.
Velocity have a direction.
It is displacement upon time
Ans3) R=7m
Formula = 2πr
2×22/7×7 = 44m
Hence average speed is 44m divide by 60sec is 7.333....m/s whereas average velocity is 0 m/s ( as he is moving in a circular path)
1. Distance is equal to displacement when a body travels along a straight line path.
2. Speed is a scalar quantity whereas velocity is a vector quantity.
Speed just needs its magnitude to have a complete meaning while velocity needs both magnitude and direction to have a complete meaning.
3. Average speed= 0.73 m/s
Average velocity= 0
Thanks for the video sir, I had a fun revision.
How the average speed is 0.73 ,🙂
Q3.
(i)Answer is
O.73333 m/s
D is given = 14m
Radius=d/2
R=14/2=7
R=7
Circumference= total distance of path
2πr=2×22/7×7,2×22= 44
S= d/t,44/60
= 0.7333 m/s
(ii)velocity = displacement/time
Initial and final position is same so velocity will be = 0
very useful 👍🤩
I'm preparing for NEET but I was confused between speed and velocity, now I understood. Thank you sir!
Best vedio on RUclips on these topics.
I think the answers should be:-
1) Distance is equal to displacement when we take the shortest path to travell from one place another.
2) •Speed is the rate of change of distance whereas velocity is the rate of change of displacement.
•Speed is a scalar quantity whereas velocity is a vector quantity.
3. Average speed = 0.733m/s and
Average velocity = 0
I am in 8th standard and i really enjoyed the video..the content is ausome.. thanku so much!👏👏👌👌👌👍👍
Most welcome 😊
1) when the body motion in straight line
2)speed=scalar, distance/T Velocity=vector, displacement/T
3)2¶R=2×22/7×7=44, AVG SPD=44/60 m/s
AVG VELOCITY =ZERO final POINT and intitial point same
Q1. When a body is moving in straight line then the distance is equal to displacement . Let's suppose ....... A body travels from point A to B in a straight line and the distance between A to B is 40m then the displacement will also be 40 m because. The shortest distance between Initial position and final position is AB itself.
A ._____________________________.B
Q2.
Speed:--- 1.speed is a sclar quantity.
2. Speed= distance/ time 😁
Velocity:--- 1. Velocity is a vector quantity
2. Velocity= displacement/time 😁
Q 3.
Given;-- diameter of circle= 14m
Therefore; radius will be 7m
Now the circumference of circle is 44m .
Average speed= total distance/ total time
=→ 44m/1minute
__. 44/60= 0.733m/s
Now, average velocity= total displacement/total time
Total displacement is 0m because his initial position and final position both are same .
Now average velocity= 0m/1minute
0m/60sec = 0m/s
Therefore . Average speed= 0.733m
Average velocity= 0m/s
🤗🤗🤗🤗🤗🤗😘😘😘🥰🥰🥰🥰. If my ans is correct then plz sir ☺️ pin my comment.....
Correct answer bro
Absolutely correct
I wish I could pin it😔
Thank you for your Help ❤️
Ans 1- In uniform motion (moving in straight line.
Ans2-i) speed depends on distance
Where velocity depends on both distance and direction
ii) speed =scalar, velocity=vector
Ans3- Avg. Velocity =0m/s
Avg. Speed =total time /total distance.
Total distance=circumference of circle, D=C=2πr, =2x22÷7x7=44m
Avg. Speed =44÷60=0.73m/s.
Excellent!! All your answers are correct :) Also try the Quiz for this video on my Website. Quiz button is below the video: www.manochaacademy.com/physics/motion/l/distance-displacement-speed-velocity-1
1) only when moving in a straight line.
2. a) speed is the rate of change of distance while velocity is rate of change of displacement.
2. b) speed has only magnitude while velocity has both magnitude and direction
3) Average speed = 44
÷
60seconds
0,73/sec
Average Velocity = 0
A doubt how come average speed is equal to 44/60?
it's been two years since this video was uploaded and you're still replying to comments and helping us out. This shows how dedicated you are to teach people. Thank you sir!
Qno1= distance can be equal to displacement if the body travel in a straight path.
Qno2= speed. | velocity
= speed is scalar quantity. | velocity is a vector quantity.
=Speed cannot be negative | velocity can be negative
= speed cannot be zero | velocity can be zero
Qno3= 0.777777777777777 or 0.8 m/s.
All are correct. Thanks a lot❤
Sir
I hadn't understand these in my high school life.
Now I learn from you.
Thank you so much for making this video.
Glad to hear that
Searched too many videos but finally got the one most understanding and amazing video . Just like the fruit of hardwork is sweet .
Glad it helped
@@ManochaAcademy please make more videos for class 9 science
ans 1 = distance is equal to displacement only when object is travelling in a straight line with constant motion .
ans 2 =speed is distance per unit time velocity is displacement per unit time
speed is a scalar quantity velocity is a vector quantity
ans 3 = total distance covered = πd = 22/7 *14 = 44 m
total time taken = 1 min = 60 sec
total speed = total distance / total time taken = 44 / 60 = 0.73 m/sec
total displacement = 0 m/sec
total time = 60 sec
total velocity = total displacement / total time covered
= 0/60 = 0 m/sec
thanks for a complete answer
Q1 - When both objects are travelling in a straight line.
Q2- Speed is distance and no direction (Scalar) Velocity is displacement and has direction (Vector)
Q3 - Distance = about 42 m so speed = 42 m/60 s = (about) 0.7 m/s average velocity = 0m/s
Answer:1 distance is having magnitude and displacement is having both magnitude and distance and would be same when they are traveling in the same linear path.
Answer 2: Speed = Distance/Time and but it has no direction whereas Velocity= Displacement/Time and it's having a direction.
Answer 3: average speed= 44/60=11/15 m/s and average velocity= 0/60 = 0m/s.
Absolutely right bro , the only correct answer to the third question in the whole comment section
@@Cnsl_cr7 Thank You bro.
CORRECT ANSWER BRO
SUPER
You are teaching every topic very easy which we can understand fast.
Yes yes
yes
Nooooo
Hai
Yes
This "practical" way of teaching is amazing 👏.
Sir , please do lectures for class 11. You are one of the great teacher who inspires students to love the subjects and also we understand your teaching , you explains every concept crystal clear . It's a humble request.
Sir I think u should make a app of your academy..
Your videos are very helpful to my daughter....Thank u so much👍👍👌
Thanks a lot :) Yes, I am making a WebApp : www.manochaacademy.com . Right now it's just a basic Home Page with videos categorised by subject. I'll be adding more practice questions and features soon!! :)
@Deepak Giri, we recently launched our website with new features: www.manochaacademy.com . Do check it out!
1. When object moves on a straight line.
2. Speed is a scalar quantity which only shows magnitude and velocity is a vector quantity which shows both magnitude and direction.
3. distance = π × d (circumference)
= π × 14
time = 1min = 60s
speed = distance/time
= π × 14 / 60
= 0.73 m/s
displacement = 0 (complete the circle so)
time = 1 min = 60s
velocity = displacement/time
= 0/60
= 0 m/s
I have physic exam tmr😍
Best of luck 🤞
(3) Total distance = Circumference of the circle = π×d = (22/7)×14 = 44 m.
Total time = 1 min = 60 seconds.
Average speed = 44/60 = (11/15) m/s.
Now, total displacement = 0 (the boy returns to initial point)
Average velocity = 0/60 = 0 m/s.
First good answer
Impressive
Q1) When the body is in a straight line
Q2) Speed is equal to distance ÷ time while velocity is equal to displacement ÷ time and speed is a scalar quantity while velocity is a vector quantity.
Q3) average speed=0.733 m/s and average velocity=0
Well done ❤️ but it's the average speed supposed to be 0.233m/s
Q1:alone a straight line
Q2:speed is a scalar quantity and velocity is a vector quantity.
Speed consists only of magnitude but velocity consists of both magnitude and direction.
Q3:the average speed is 0.2m/s and the average velocity is 0m/s.
Speed is not 0.2m/s
How velocity come 0
Please help
Q1}when object is uniform
Q2}speed-only magnitude&Non-uniform motion
Velocity-magnitude and direction both&uniform motion.
3Q}perimeter of circle=2πr r=d÷2
=2×3.14×7
=44m(apx)
Avg Speed=d/s
=44/60
=0.73m/s
Avg Velocity=final-initial ÷time
= 0/60
=0
1) distance : length of the path travelled
Displacement: distance between initial point to final point
2) speed : scalar quantity, no direction
Velocity: vector quantity, has direction
3) average speed: 44/1
= 44
average velocity: 0
you do it wrong
Time is always taken in seconds.
@@dipanshu3431
I’ll check it
@@dipanshu3431 hhhhh yup you r right
1) when a body moves in a straight line
2) speed - scalar
Velocity - vector
3) Average speed - 0.733 m/s
Average velocity - 0
Answer for question 1 is when the object moves in straight line question 2 answer is speed is scalar and velocity is vector and speed is the rate of distance travelled and velocity is the rate of displacement question 3 answer is 14 m is diameter distance is 2×22/7*7=44 m distance time is 60s S= 44/60=0.73 bar displacement is zero .that's it my name is jindam keerthana
Q1- when a body travels in a straight line
Q2- speed is a scaler quenty and velocity is vector quenty
Thank you for give me answer
1st: Distance is equal to displacement when a body travel through the shortest path.
2nd: speed- speed is the distance covered by a body in certain time .
Speed- speed is a scalar quantity
Velocity: VELOCITY is the displacement by a body in certain time.
Velocity: it is a vector quantity
3rd: speed- 44m/60 sec
Velocity-14m/time
What a Good teacher this is all becomes easy for me... splendid, I follow all your teachings and iam writing exams end of this year from zimbabwe
Thanks for liking and all the best
already new but your teachings are understood
i am suffring from 9th to these topics now i am in 11th ur video really helped me a lot
Same bro
Most easiest explanation🤩🤩🤩🤩🤩🤩🤩
Glad you liked it
Oooooooo man really🤣🤣🤣
I did not understand a single word from my teacher.Now I understand everything from here. Thanks
Great to hear that your concepts are clear. Thanks!
my teacher was too lazy to explant
1. When there is only one path available to reach the end point the distance and displacement is same because that is the shortest path.
2. Speed is the rate of change of speed. It is a scalar quantity.
Velocity is the rate of change of displacement. It is a vector quantity.
3. Average speed = 44m/60 s = 0.733 m/s
Average velocity = 0m/60s = 0m/s
Thank you so much for sharing answers ,
Answer 1- Distance is equal to displacement when the object is in a straight line from initial position to final position.
Answer 2-speed - a- scaler
b- S.I. unit is m per second
- velocity-a- vector
-b- S.I. unit is m per second
Answer 3 - average speed is 2×22/7×7=44
Then divide 44/60 =0.73
Average velocity=0/60=0 because the object comes start from initial position then come to its initial position that why we say that displacement is 0.....
1. When a body travel in a straight line.
2. Speed is scalar quantity . Velocity is a vector quantity.
Speed is the rate of change of distance . Velocity is the rate of change of displacement .
3. We need to find the circumference c = 2pi r . To find r we need to divide 14 by 2.
1.When initial velocity and final velocity is same
2. 1, speed is rate of change of distance
2, speed is scalar quantity
1, velocity is rate of change of displacement
2,velocity is vector quantity
1no.........👌👌👌👌👌👌👌👌👌👌
Thanks a lot :)
1-> when both are zero .
2-> i] Speed is a scalar quantity and velocity is a vector quantity.
ii] Speed is rate in change in distance but velocity is rate in change in displacement.
Very nice explanation and enjoying practically examples☺☺
Glad you liked it!
I would like to know when is the next lesson
I am surprised on how you still replying comments onto these days. It show the dedication you had toward teaching. Thank you , you are a wonderful person.
So nice of you
Q1. Distance and displacement can only be the same in the object is moving in uniform motion
Q2. Speed is distance / time and velocity is displacement / time and speed is a scalar quantity and velocity is a vector quantity.
Q3. 14 X 3.14 = 43.96 43.96 / 60 = 0.73266667 average speed. 0 / 60 = 0 average velocity.
take pie = 22/7
1.Distance is equals to displacement when it travels in @ straight path and can't return.
2.Speed is a scalar quantity.
Speed doesn't have fixed direction
.. Velocity is a vector quantity.
Velocity has both magnitude and direction.
3.Average Speed=1.46 m/s
Average Velocity=0m/s
I already know that 😂🤣 sirf tum hi nhi ho 🤣😎
Ans-1 when the object is going to in straight line then distence & displacement will be equal...
Ans-2 speed-(1)scaler (2)no need to direction
Velocity-(1) vector(2)need to direction
Ans-3 44/60=22/30=0.73
Sir i'm from hindi medium so please make a video in hindi & english sothat we can also watch your videos ..whose pepople are from hindi medium....
Question 1:
When the distance and displacement is traveling in a straight motion in the same direction from initial to final position.
Question 2:
Speed is for rate of change in distance, it is a scalar and has no direction.
Velocity is for rate of change in displacement, it is a vector and has direction.
Question 3:
Given; t = 60 sec; diameter is 14 m going back and forth the displacement will be 28 m
The diameter is the length of the circumference that is a straight line in between of it so basically is it the length of the displacement multiply by 2 because he finish the circumference.
To find the average speed you need to find the meter of the circumference.
c = πd
c = (3.14)(14 m) = 43.96 m
Average speed = 43.96 m/60 s = 0.73 m/s
Average velocity = 28 m/60 s = 0.467 m/s
This is what I understand
Bro the velocity is equal to zero. Because the initial and the final positions are the same .
V= x final _ x initial / time
V= 14 _ 14 / time
V = 0/ time
V=0
Bro diameter is 0 so average velocity will also be 0
Best teacher ❤️❤️❤️
Thanks
Ans 1= when an object moves in a straight line distance =displacement
Ans2= speed
rate of change of distance
Scalar quantity
Velocity
Rate of change of displacement
Its a vector quantity
Ans 3=
avg speed-0.73333....m/s
Avg velocity-0 m/s
(Answer of Q1) Distance is equal to displacement when a body travels from the initial position to the final position in a straight line .
(Answer of Q2) Speed is a scalar quantity, but velocity is a vector quantity.speed cannot be zero but velocity can be zero.
(Answer of Q3)
Average speed=total distance/
total time
The distance traveled by the boy is
the circumference of the circle.
circumference=2 X pi X r
r=diameter/2 =(2 X 22/7 X 7)m
=14m/2 =44m
=7m time=1minute
=60second
So, average speed=44m/60s
=0.73m/s
Average velocity=total displacement/total time
The displacement is 0m (because the initial position and the final position are the same).
Hence, average velocity=0m/60s
=0m/s
Kashinath Karmakar v
Correct...well done
ap kitne sal ke hu
apne sare jawab bhut pyary r detail k sat batai hy
my answer is write r wrong
Sir , u really are fantastic, really .
Thanks a lot KEEP WATCHING
sir just love the way you are explaining...
Thanks a ton
@@ManochaAcademy Thanks to you sir...
Very fluent and student friendly language you use. Thanx alot my confusion has been solved by you!!!!
Glad to hear that!
Q.1] Distance is equal to displacement when the object is travelling in a straight path.
Q.2] Speed : Rate of change of distance, Scalar quantity
Velocity : Rate of change of displacement, Vector quantity
Q.3] Avg speed : total distance/total time
πd / 60 sec = 22/7 × 14 / 60
= 44/60 = 22/30 m/s
Avg velocity : total displacement/total time
0/60 = 0 m/s
I hope my answers are correct..✌🏻🤞🏻
Yeh its correct..
Thank you so much 💕❤️ for this....✨✨✨✨👌🏻👌🏻👌🏻😍
Why pie.d?
@@-CNaveed cz its a circle
@@-CNaveed because C=2πr and 2r=d hence πd
Q 1)when a body is travelling in a straight line
Q 2) speed is scalar and it is rate of change of distance. While velocity is vector and it is rate of change of displacement.
Q 3) Average speed 14/60= 0.23
And Average velocity 0/60=0 displacemet is 0 coz the boy is travelling in a circle
sir, you teaching is excellent.
Thanks
Diameter of the circle track = 14 m
Radius of the circle track (r) = 14 m / 2 = 7 m
Time taken to complete one circle = 1 minute = 60 seconds
Total distance covered: The boy runs around the entire circle, so the distance covered in one lap is equal to the circumference of the circle.Circumference (C) = 2πr
𝐶
=
2
×
𝜋
×
7
=
14
𝜋
C=2×π×7=14π meters
Average speed:
Average speed is the total distance covered divided by the total time taken.Average speed = Total distance / Total timeAverage speed =
14
𝜋
60
60
14π
m/sLet's calculate the numerical value:Average speed ≈
14
×
3.14
60
60
14×3.14
m/s
≈
43.96
60
60
43.96
m/s
≈ 0.7327 m/s (approximately)
Displacement:
Displacement is the straight-line distance between the initial and final positions.In this case, the boy returns to the starting point, so his displacement is zero.
Average velocity:
Average velocity is the displacement divided by the total time taken.Average velocity = Displacement / Total timeAverage velocity =
0
60
60
0
m/sSince the displacement is zero, the average velocity is also zero.
So, the average speed of the boy is approximately 0.7327 m/s, and his average velocity is 0 m/s
Yes sir this is very using in lockdown sir thanks
yaa it is correct purusha suktam
Hi sir I am Tejas I love your videos
1.speed is scalar quantity and it is constant
2.velocity is vector quantity and it is not constant
It is good video to learn about physics
1)when object is moving straight line
2)velocity= it is a vector quality
And it has magnitude
And direction
Speed= it is scalar quantity
And it has only magnitude
3) distance =14 diameter
Radius=7m
Time=1m=60s
S=d
--
T
On circular path d=2 22/7×r
2 ×22/7×7 =44
S=44/60
=0.7333_ _m/s
V=d/t
D=0
V =0
Velocity will be 0.233 m/s because diameter is the shortest path
1 The distance is equal to velocity when the motion is in the straight line
2speed:scalar quantity velocity :vector quantity
speed is distance moved per unit time
velocity is rate of change of displacement
radius =14/2=7
circumference 44/60=0.73
velocity =0
We need teachers like him....He is superb at explaining things with ease..... "PRACTICAL KNOWLEDGE"
We understood very well
Thank you so much sir
Most welcome
Q1. If a distance is having direction than it is equal to displacement.
Q2. Speed: -
•It has no direction only magnitude.
•It is scalar quantity.
Velocity:
•It has both direction and magnitude. •It is vector quantity.
Q3.
Given:
Time=60s
diameter=14 (r=14/2=7)
Distance?
Displacement?
:-
To find the total distance =circumference ofcircular track
Circumference=2πTr
(2×22/7×7)= 44 m
Total Distance= 44m Total Displacement=0
Avg. speed=44m/60s
=0.7m/s
Avg.velocity=0m/60s
=0m/s
Thank you
Wow nc maths you know this question 977788÷888876655×56556667=
@@nastehofarah5821 NO Sir
LISTEN! LISTEN! I solved it i got the avg velocity right as yours but in the first part where it was asked to find out avg speed I multiplied 2 pie r=3.14 with 14m and got 43.96 which I divided by 60s and the final ans was 0.732 round of 1m/s
for q1. If both the distance and displacement are having the same path of length to be traveled then it will be the same
for q2. velocity is vector while speed is scalar
to obtain velocity we divide displacement over time while for speed we divide distance over time
please point out my mistakes and tell me why they are incorrect, it'll be helpful, thnks
Sir your style is very good
Thanks and welcome
Q 1. When a body is travelling in a straight line.
Q 2. Speed is scale quantity and velocity is a vector quantity
Speed is the rate of change in distance &
Velocity is the rate of change of displacement.
Q 3.
Diameter = 14 m so radius will be 7 m as. Radius is half of the diameter
So the perimeter of park will be 43.96m or 44m by rounding off and
His time is 1 minute or 60 seconds therefore the speed will be 44/60 = 0.73 metres per second.
And velocity as 0 m/s as he is in back in his position after running and his displacement is also 0
Very nice explained. Sir you are supper . Can you a teacher
Yes, sure
Finally I can understand this whole thing known as velocity,,,thanks so much
Question no. 1 answer) it's travelling in a straight line.
2) Speed
It's scalar quantity
Rate of change of distance
Velocity
Its vector quantity
Rate of change of displacement
3) average speed= 44/60m per second
Average velocity= 0 please answer I'm correct or not
_
0.73
Third one
okay this cleared my concepts really well,your english is really clear better then my teacher though✔
Yes mam
1.Distance is equal to displacement when an object travels on a straight line
Yes
You gave me 100% on my chapter test. Thank you very much! :) I really appreciate it!
Congratulations 🎉 You’re most welcome!! Thanks for sharing!
Best sir..✨
Thanks
Yes sir is best
Sir why are u so underrated u deserve so much more 😔
2 1 speed is scalar quantity and velocity is vector quantity
2 speed is rate of change of distance
And velocity is rate of change of displacement
Sir you deserve millions of subscribers
Thanks
ONLY A STUDENT-LOVER TEACHER
CAN TEACH LIKE THIS
THANKYOU SIR 🙏
Most welcome
1ans = when a body moves in straight line and in particular direction
2 ans = speed is a scalar and velocity is a vector quantity
velocity has magnitude and direction , speed has only magnitude
3ans= average speed = 11/15m/s or 0.73m/s
average velocity = 0m/s
please Aruna, how did you get the answer to (Question 3)?
Yes I hypothesis that you are right
@@mabelumunnakwe7321 I want to know how you got the answer 0.23
Q2) i) Speed is depend on distance
I) velocity is depend on displacement
II) speed is scalar quantity
II) velocity is vector quantity
Yaa ,you are right
Circumference of circle =2πr
2×22/7×7 (radius=14/2=7)
=44m
So, average speed=
Total distance/total time
=44/60 =0.73m/s
Now, average velocity=
displacement/time taken
=0/60=0m/s
👏
doubts?😂😂 its crystal clear sir!
A1. Distance = displacement when the object is travelling in a straight line.
A2.a)Speed = Distance/Time Velocity = Displacement/Time
b)Speed = Rate of change of distance Velocity = Rate of change of displacement
A3.Average Speed = 0.73m/sec Average Velocity = 0
Q1. Distance and displacement are equal if the path taken is a straight line.
Q2. Speed is a scalar and it is distance/time.
While velocity is a vector and it is displacement/time.
Q3. The average speed is 0.73m/s while the average velocity is zero(0)
Explain please 🙏
Explain please
How?
Watching you from Nigeria 🇳🇬. I'm enjoying every bit of your class well detailed 👍
This helps so much in physics study's while lockdown
Happy to help
Manocha Academy i have a doubt
Q1-In a Straight line motion
Q2-Speed is Scalar but Velocity is a Vector and Speed can be negative but Velocity cannot be negative
Q3-Average Speed is 0.733m/s and Average Velocity is 0m/s
How it's possible... Plz... Explain it
@@kasirajannagarani172 average speed is calculated by average displacement but here as the particle again reaches to initial point so displacement covered by the particle is 0 therefore average velocity is also 0
Ans.1.
When the initial and final position is same.
Ans.2 .
Speed is scaler quantity
Velocity is vector quantity
Speed =distance\time
Velocity=displacement\time
Ans.3
Average speed= 14
Average velocity=0