Uniform Circular Motion and Centripetal Force
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- Опубликовано: 14 окт 2024
- Enough of this moving in straight lines business, let's go in circles! Circular motion may not be productive but it's super fun. Ferris wheels are fun. Yes they are, don't be a spoilsport. Roller coasters are fun too. And merry-go-rounds. And learning about centripetal force. Look, I don't understand why you're resisting so much, we are talking about a freaking amusement park. Fine, be that way, I'll go by myself. You stay here and learn this math!
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Your 6 minute video summarized what my teacher was trying to explain for two hours!
Extremely helpful thanks!
lucky, im in 6th grade and my dad could have explained it fastly but hes making me watch videos that i cannot unerstand (at all)
lol thats like every single comment here
same fact for to bro
i love the way he teaches..way better than the professor i have in uni
Should be, the profs are not professional at teaching
this video is so simple but well-made... i'm studying for finals and when i started struggling with centripetal acceleration i had to come back to this specific video to remember it again. thank you professor dave!!
I appreciate the fact that all your videos are not long and they are easy to understand. Thank you Dave
Dave, I love you dude. I am reviewing A Level physics after graduating with a physics degree 11 years ago and I've forgotten everything. You explain everything so well, it's amazing. Thanks a bunch!
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if you subscribe to the channel youtube will notify you every time i post! that way you won't miss any of the sweetness!
I have fallen in 😍 with your channel Dave. It's a perfect balance of thoroughness and brevity.
glad to hear! please tell your friends :)
stfu
@@roastfire7242 Chill dude :(
@@roastfire7242 you stfu you peice of shit no one speaks to Jesus like that
@@salahshayah9864 Lol. *Peace
00:01 Uniform circular motion requires different equations
00:47 Uniform circular motion involves constant tangential speed and a constant radius.
01:30 Shorter distance in same time means slower speed
02:07 Centripetal force causes constant change in direction.
02:47 Centripetal force is generated by centripetal acceleration.
03:31 Centripetal force keeps objects in circular motion
04:11 Centrifugal force is not a real force, it's due to inertia.
04:49 Uniform Circular Motion and Centripetal Force explained
Your kind is the GOAT
No cap, this dude keeps me sane. THANK YOU!
Awesome teaching... Made the whole chapter easy! Thank you so much
I am on a conquest of watching the whole playlist.
I have not seen anyone else explain some so clearly and Professor Dave. He really knows how to make science understandable!
professor Dave has helped me a lot
stfu
@@roastfire7242 you stfu
@@roastfire7242 stfu
Thank you so much. I missed a week of school and wanted to catch up on physics, and you explained in 6 minutes what my teacher explains in 3 classes! And you explained it way more clearly and simply than him.
I have an exam tomorrow, you literally explained everything I need to know in 6 minutes. Amazing!
Professor Dave, thank you very much.
You always save the day, you're getting me through a college physics class. Thanks so much!
Thank you very much you are very appreciative Professor Dave Hats off
Thank you proff Dave !!!
Have you considered doing a short Electricity series ?
i have a few on electricity coming next week!
Comprehensive, yet easy to understand !! TQ Professor Dave !! 😁👍🏻👍🏻
You have answered many of my questions in this little video..What is more beautiful than this😁..
i love his lessons now everything is so simple
3:54
Owh, no.... that would hurt.... XD
I almost commented that 😳
I always watching your videos whenever I am troubled with physics and chemistry, it helps me a lotttt❤
You always explain so well
sir this channel is just love the way you explain is awesome and makes the whole topic simpler and easier
very, very good explanation.
What a thrill at 5:00
wow this video has helped me so much thank you very much dave!!!
Good evening Sir,
Very helpful and eassy to understand,
Thanks and regards,
Ankur
Good graphics and Good way of explaining
Omgg I love ur hair it's so long and pretty please share ur hair care routine
it looks like jesus christ has reincarnated lmao
Oof, i just remembered that I'm Catholic and we believe in ressurection 🤸
why are you here mary
with how much of my grades he's saved, he pretty much is
now i can understand this completly. thanks sir. it is very helpfull for me🙏
in this video the answer for your question is 6.25N professor Dave but you gave the answer as 6.3N..............but theexplanation is very good............at first i was blank on this concept but after seeing your video i became an expert in this topic and i even got full marks in my exam............thank you so much
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No
What's wrong with Khan Academy?
Hey vaishnavi where are you from????
Hey vaishnavi where are you from?????
You are not from India I guess...
Professor I really respect you. By your knowledge.
Hi Professor Dave, thanks for all the great videos. I think that I spotted a slight mistake at 2:55, where you say that centripetal acceleration is inversely proportional to r. However, tangential velocity is v*r, therefore tangential velocity squared/radius will equal omega squared times r, so they are linearly related.
dave youre a legend mate
Thanks Mr.Dave, it helped a lot!
haha reply go brrrrrrr
Thanks dave.... wish i had a professor like you....
Your explanation is just amazing professor 👨🏫👨🏫👨🏫
Thx for this detailed video, helped a lot
your cartoon animation is the best, keep it up
1 min of Dave's vdo is equivalent to 1 HR of my school tchr
This is soooo helpfullll :)
Thank you prof.Dave!
your explanations are the best!
After hearing for years that centrifugal force isn't a real force, I finally understood why. Prof, you are our savior, science Jesus.
Sir plzz cover and explain some topics of alternating current
Dave, you are a good man
Thank you !
I have a very simple but intuitive question.
Why doesnt the object collapse into the point.
Since the centripetal force is an acceleration is increasing with time it should get to a point where its high enough to pull the object towards its centre.
For example:
The electron in an atom if not for its stationary state it should be pulled towards the nucleus since the proton and nucleus attract but what keeps it moving in a circular path is the fact that they have fixed energy called stationary States so they can't lose energy.
But objects in the real world dont have fixed energy level so what keeps them in circular path?
Another example is that if we change the mechanics occurring on the body interns of force, The centripetal force will be the F=m×a but converting the objects tangential velocity into force its F=0 since it has no acceleration.Resolving the 2 forces the object is supposed to move towards the center so why does it still moves circular
Perhaps tangential acceleration is stronger than centripetal acceleration, and the object should follow the stronger force more
@@Attalla-t9b there is no tangential acceleration if there is velocity so the tangential acceleration is zero
Tenx professor u really helped me a lot
best teacher , wow i follow u first on chemistry, wow u are also excelled in teaching physics. The best video on centripetal force in the universe
Love you Dave
Any uniform circular motion example, like earth which doesn't stop, which is constant in speed any other example
First of all, thanks for all the help! I never thought I would be able to understand physics LOL!
This chapter was really hard for me and I don't feel like you get so much into it in this video. Is there anyother video about this out there that you've posted? I had big problems with equations and the formula K=1/2 * Mv^2 + 1/2 * Iw^2
thank you very much
Professor Dave is really great
Thank you professor Dave
good explanation
Awsome!
Very useful and quickly!
is anyone else getting 3.125 N in the check your understanding question? I solved it like 6 different ways and thats the only answer I get. I do, however, get 6.25 if you *dont* divide by 2. Did Dave forget to divide by 2 or am I just doing something wrong?
Right I don't get it I did the same thing and it's 6.25
Thanks I've an exam tomorrow and you helped me out
Thanks to him, I passed my research paper. Thanks GOAT!
STATIC friction from the road as the car navigates a road? I'm a bit confused about why it's not kinetic friction. The car is already is motion, I think? Interesting
Due to the fact that the wheels rotate, the point of contact between the tires and the road becomes an instantaneous center of zero velocity for each wheel. This is a point where the wheel that is in both translation and rotation, is locally at rest. The force of static friction prevents the tire from skidding, so that the car only moves according to the direction set up by the various axes of rotation of the wheels.
Static friction enables the force of traction, that allows the drive wheels to propel the car forward, and allows the steering wheels to change the direction of the car on a flat road. It also works with the braking of the car. The kinetic friction occurs between the brake drum and shoe, so that it doesn't have to occur between the tire and road. If your brakes lock up, your car will skid, and steering won't let you control it. This is why we have ABS brakes, so that the wheel-road remain in static friction, and the kinetic friction is kept inside the brakes. In pre-2000 vehicles that didn't have ABS brakes, you would have to manually pump your brake pedal to get the same result.
Short and sweet!
Thank you
I do not understand why any will click the dislike button on videos like these
This guy is really amazing.
Crash Course left the group.
plz make live class,,
The most precise illustration circular motion. I went through this in my Physics lessons years ago and yet, this lecture simplified it much more than the rest. Keep up the good work, Professor! You're making a huge difference in academic circles. :)
Hehe
Speaking of circles..
if the string is 2.0 metres long doesn't that mean the radius should be 2.0/2π as 2πr = circumference?
The length of the string is the radius.
@@ProfessorDaveExplains Ah, silly mistake from me there! Thanks for the reply
wouldnt it be 25*0.5*/1 because the string is 2 meters long and we need teh radius which is half
Ty for the video really good 👍
good stuff my dude !
god bless you mannnn
shouldnt the answer of question be 6.25N instead of 6.3N?
if you were my teacher I would have already taken all the exams.
what does that even mean lol
Thanks
Clutch
sir pls upload a video on dimension and units tricks for engineering students.
Is Change in momentum = centripetal force ?
What is change in momentum conceptual based?
momentum is centrifugal force?
Thanks sir give ans please not clearly understand sir
Rate of change in momentum = net force
When the rate of change in momentum is entirely perpendicular to the velocity, that rate of change in momentum is the force that causes centripetal acceleration.
Centrifugal force is a fictitious force, that is a consequence of looking at this problem from within a reference frame in circular motion, rather than from the inertial reference frame. What it really is, is a body's tendency to proceed in straight line, reacting to a force that attempts to accelerate it inward, and assuming (incorrectly) that it is due to a force that attempts to pull it outward. That apparent force attempting to pull it outward, is the centrifugal psuedoforce.
Waittt so a lower tangential speed means that an object travelled only for a short distance, then why is it that the centripetal acceleration increases as it gets closer to the center? I'm kinda confused
If you fix the tangential speed between examples, closer to the center means a greater centripetal acceleration. It is inversely proportional to the radius, a=v^2/r.
If you fix the period of rotation between examples, which is equivalent to fixing the angular speed, closer to the center means less centripetal acceleration. It is proportional to the radius, a=omega^2*r.
Nice one bro... 👍
I am regretting why didn't I watch this video in my exams time
Wait for the equation how come you didnt divide the distance by 2 for radius?
how do you mean?
Wouldn't the radius equal 1m, if the string is 2m long?
but you don't hold the middle of the string, you hold the end of the string.
good video
Done.
falling down from a height always is something that always stop me to sit in this. 😅
thank you
encountered this concept many times since high school. im now on my second year in engineering and still needs to review this HAHA. (and i know this wont be my last)
thank you professor dave!
i am physics teacher, i wonder how do you do these animations
adobe after effects
why the force will pull the object inwards?
Thank you Physics Jesus
sir, can you make a video on non inertial frames
Vignesh Nithyanandam
non inertial frame of reference do not follow Newton's laws of motion
are u from SSC board
Ajinkya Deshpande i am from cbse mam
@@ajinkyadeshpande6271 It isn't that non-inertial frames of reference "do not follow Newton's laws of motion", they still do. It is just that you have the acceleration of the reference frame to account for, something that is not immediately obvious, which will feel like it is a fictitious force.
My physics teacher showed this to the class
Speedrunning this du du du duu