What is velocity? | Average and instantaneous velocity | 11th class Physics
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- Опубликовано: 8 окт 2024
- In this video we discussed velocity and its different types like average velocity, instantaneous velocity also discussed differences between uniform and variable velocity. This video covers 11th class physics for fsc medical and engineering.
Have you ever wondered how fast an object is moving? Velocity is a fundamental concept in physics that helps us understand the motion of objects. In this video, we will be discussing velocity and its different types.
Velocity is defined as the rate of change of an object's displacement with respect to time. There are two types of velocity: average velocity and instantaneous velocity. Average velocity is calculated as the total displacement divided by the total time taken. Instantaneous velocity, on the other hand, is the velocity of an object at a particular instant in time. It is calculated as the limit of the average velocity as the time interval approaches zero.
Velocity can also be classified into two categories: uniform and variable velocity. Uniform velocity is when an object moves with constant speed in a straight line. Variable velocity is when an object moves with changing speed or direction.
Velocity is a vector quantity that has both magnitude and direction. It is represented by the symbol "v" and is measured in meters per second (m/s). The magnitude of velocity is the speed of the object, which is the distance traveled per unit time.
Average velocity is calculated as the displacement of an object over a certain time period. Suppose an object starts at point A and moves to point B in 5 seconds. The distance between points A and B is 50 meters. Then, the average velocity of the object is 10 meters per second (50 meters/5 seconds).
Instantaneous velocity, on the other hand, is the velocity of an object at a specific point in time. It is the limit of the average velocity as the time interval approaches zero. For example, if an object is moving along a straight line, its instantaneous velocity at a particular point can be calculated by finding the slope of the tangent line to the position-time graph at that point.
Uniform velocity is when an object moves with constant speed in a straight line. For example, a car moving at a constant speed of 50 km/hr on a straight road is said to have uniform velocity. On the other hand, variable velocity is when an object moves with changing speed or direction. An object moving in a circular path at a constant speed is said to have variable velocity because its direction is constantly changing.
In conclusion, velocity is a fundamental concept in physics that helps us understand the motion of objects. It has different types such as average velocity and instantaneous velocity, and can be classified as uniform and variable velocity. Understanding these concepts is crucial for anyone studying physics at the Class 11 level.
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A body is dropped from certain height "H". What is its intial velocity?
a) 10 b) 0 c) 9.8 d) both a and c are correct
b
b
B ,0
B
B
Great Sir!! Your teaching method is very Good, On Monday there is my University Physic Paper but after watching your lecture I am sure i will pass it easly
Very helpful video sir for clearing confusion related to velocity . Thankyou sir , you are great .
Ma Shaa Allah ex excellent lecture on basics physics.
sir plzzzz physic k lecture ap diya kre u are best teacher in the world pata ni clgs ma esay q ni parhate
Oky
Sir what is the difference between simple velocity and average velocity ? Are it is same or not ?
Respected sir.kisi ne b instantaneous velocity ko itna achi tarha se explain nahe kia jitna ap ne.JAZAKALLAH
Okay
Sir g your teaching method is very good.i found a lot of information in this lecture about topics that I didn't know before. Thanksgiving 😍
teaching method is really good
Zero velocity . Thanks sir your lecture cleared my concepts
Thanks sir. Your teaching method is very simple and related.
Welcome always 🤗
All concepts about velocity are clearly and precisely described👌 Efforts are really appreciated🙂 thanks for sharing this video..
Thank you
Option b
@@perfectguidance7718 😂
whenever an object in drop case itn initiall velocity will be zero similarly when an object is thrown up its final velocity will be zero.
thanku so mch sir...You are doing amazing.May Allah bless u more nd more.
and one more thing,kindly sir share your contact number with us.
Simple it is that the initial velocity is always zero 😊😊
sir instantanious velocity ko measure krnay ki zaroorat ku paishe aa ty hai
Radhe Radhe sir from 🇮🇳 India
Instantaneous velocity ko hmm agr measured kre to rate of change mn karen Gai ?
Sir! Velocity ma bi total time lety hn kia.. Ya srf average velocity ma hi...?
Superb explanation , really so helpful , thanks a lot sir💜
Sir yah mcqs apna intanenous velocity sy palhy discuss kiya iam right or not.
agr hum shortest interval of time dekhna he to wo decimal point mei ni ho skta??
World best teacher
i guess option b is correct. is it ?
Yes
MashAllah sir g😍
what is variable velocity??
Sir ap acha explain kerte hain is lia phy k lec sare banaye plz full book kaafi faida hojata or is ch k num or ex short q upload kerde
Displacement change what it mean?
My concept is now cleared
Sir main ny b chose kya tha lykin google 9.8 bta raha hai
WHY sir?
I am in prep 9 I understand that thanku sir
Me too
@@lachimolala997 ok
Great 👍
you r great sir
ruclips.net/video/cDScdtq6W-I/видео.html
Sir Why n how d average velocity in one dimension either be positive or negative???????????
Yes depend on direction❤
good explannation about instant of time
Sir please explain why Average speed is always positive
Good one sir thanks alot☺️
well done 😮😊
Loved your video
Amazing 🤩 lecture thank you so much sir
Sir agar uniform velocity ma speed same rah to deffinition ka mo tabak ya halat hota ha ------ (change in displacement is called velocity)
Speed 🚄 is same but direction is specific, and velocity can b produced in body due to two reasons, whenever change its magnitude means speed or its direction ⬇️.
What is change in displacement???
In case of uniform speed why average and instantaneous velocity have same value ?
Sir Your explanation is good plzz Sir follow the book of all boards
Sir aap ik video practical units for measuring time
Much helpful to understand thnks
What is the main difference between displacement and velocity
Velocity have time
good
Sir impressive lecture
Very well explain sir
Sir instantaneous velocity ke definition mein "at specific point" ka matlab samaj nahey aya
sir what do you mean by change in displacement displacement mai change kaise ata hai
When something moves in a straight line
Fantastic lecture 👌👍👌👍👌👍👌👍👌👍👌👍
what is answer of this mcqs
B option is correct sir if i am please tell me
Best explained
Sir can the Magnitude of average velocity can be greater or less than the magnitude of instateneous velocity
The magnitude of average velocity would be greater
What is different between uniform velocity and constan velocity
V nice sir
What is the average volecity of 5m/s 3m/s 4/s 2m/s? Reply plz.
3.5
Uniform velocity aur uniform acceleration me kya farak Hai?
Uniform velocity is change in displacement is equal in equal intervals of time, while uniform acceleration is if change in velocity is equal in equal intervals of time
@@TheBaseAcademy999 thank you
nice sir
Tq sir for your helping
Option B is correct
Sir
Rate means
Sir option b is correct
Sir ap legend hn..... Mera koi awkat nhi ap jaiso ko suggestion dynay Kah.... But please ap explain bahoot Acha krty hn...... And u should explain every single difficult words in books..... Please sir this is all u doing for the good future of us 💖💖💖
Thank you 😍
@@TheBaseAcademy999 base acdmy kidr hai
❤❤❤❤ amazing
Sir Screen Shot ka leye some seconds diya kary
Nice
superb
Video start 6: 20
Good
sir asap please sary book k lacturez uplode karain aap ki achy smj aaty hai. per aap k lctur nai miltay
Okay
Please share our videos
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B is correct sir
Mashallah ❤️
Option b is the correct answer sir.
Sir plz check my answer and know me that my answer is right or wrong.
Option 'b' is correct answer
Ma sha Allah
Sir displacement kaisy change hota hai
Jab koi object move karta hae
Sir limit ∆d__0 hosakhta?
good vedio sir
Omg explaination
Sir velocity negative kaise hota hai
Ase
sir mein ne ap ka lecture dakha hum displacement ko axis mein kiun draw kartat hain
Option (B) is correct
Appreciating ❤️
Sir option (b)
What is rate
its answer option b
Option B
As a rocket moves up while doing its job ,its acceleration goes o
(a) Increasing
(b) Decreasing
(c) Remain same
(d) It moves with uniform velocity
acceleration increases ,because as the rocket moves up ,it's distance from earth radius increases, so force of gravity decreases ,now the rocket moves up with the acceleration in a less resistant force,so apparently its acceleration increases.
Coorect 👏
Nice explanation
Increases bcz aas rocket moves upward it loses its fuel hence decreases its mass as mass is inversely proportional to the a so as mass decrease acceleration enhances
d,uniform velocity
d,uniform velocity
👏👏👏
Video osm
Thank you
Sir, but why in instantaneous velocity, time interval ∆t approaches to zero and not the displacement? Please reply!
Actually it is the ratio of displacement over time that approaches to zero, and why the limit is only on time, because we are measuring change in displacement with respect to time, ao limit will put upon time
Sir p/z deeply batia kara
0 is correct answer sir I am right
0 is the correct answer 😊
when average velocity and instantaneous velocity are equal. so then is called uniform velocity but why
When velocity is uniform average and instantaneous velocities are equal
A body is moving with uniform velocity. So if velocity of a body is increasing
vf > vi
then. vf + vi / 2. this is called a uniform average velocity.
Am i right
Yes you are right
@@TheBaseAcademy999 thank you very much. I have a request. you can make a deeply video on instantaneous velocity and instantaneous acceleration.
Thank u sir
Sir ,B
Superrrr
Which text book you follow Sir ?
Punjab boards
@@TheBaseAcademy999 why not sindhboard !
The Base Academy yes sir please also follow the sindh board
Plzz sir g Follow the sindh text
Option c is correct😜