Rolling Acceleration Down an Incline

0:00 Intro
0:07 The problem
0:43 #ConservationOfEnergy
2:32 Rolling without Slipping
3:32 Displacement and height
5:12 Understanding our solution
6:16 Demonstrating our answer

Next Video: Which Will Be First? (Rolling Down an Incline)

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Previous Video: Rolling Without Slipping Introduction and Demonstrations

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Thank you to Jonathan Sullivan-Wood for transcribing the English subtitles of this video.

[moosa]

Underrated! The production quality of this is amazing.

[pokevii]

thanks for all you do to provide a great education for completely free. i struggle on some topics in my physics class and i always get excited when i see you've done a vid on it. i appreciate it more than you know! keep up the fantastic work

[nadernabeh]

I used to watch this channel 2 years ago when I had AP Physics 1... your channel was one of the reasons I passed the exam! Thank you :-D

[michaelleungtsu]

your vid is so well done and means a lot to me . the clarity and the editing and the humor in the vid are all well planned and choreographed .

[williamtang]

Everything clicked once you said that no work is done by friction- I was so confused by this concept! Thanks for the video content, and thanks for all the hard work you put into these!

[izgit]

The demonstrations you use are very helpful, I hope your channel grows exponentially

[pauchicken]

I was focused then I realized everyone was the same person 😂

[artahighmore]

I'm homeschooled by your videos and i'm learning ap physics a lot better than my friends who are going to schools, the reason is because you've tought me learn but they're being tought to memorize thank you

[tritiyoalo]

Thank you so much ! Now I know the process of solving the problem that came up in the test today..:)

[palaksinghal]

reallyyy helpfull . amaziingglyy demonstrated

[okantezcan]

How did you gather data for the chart you drew in the illustration part? I am currently doing a term project on rolling without slipping on an inclined plane and got stuck on gathering data.

[Simple_diaries_]

Does gravity impact acceleration of a rolling object?

[eaglekraft]

Why do we solve for the displacement in the parallel direction? is it because the velocity final is the velocity of the cylinder parallel to the incline. Using height initial wouldn't also work in the UAM equations (4:55) because everything is in the parallel direction right? So that is why we need the displacement in the parallel direction right? or is this the wrong reason.

[kevinsunil]

Amazing Video but I have a question. How did you measure the velocity of the cylinder rolling down?

[petergoh]

Why is there no static friction? Without static friction how can the object rotate?

[marcelgunadi]

is this assuming the maximum force of static friction at the point of contact between the incline and cylinder? If not, would the equation be a <= (2/3)gsin(theta)?

[DanielDefyM]

If anyone wants an equation, for an object with a moment of Inertia x*mr^2, the acceleration will be (1/(1+x))*g*sin(theta). Pretty cool.

[rite]

So you are saying that when you change the radius and keeping the angle the same, the acceleration will be constant every time because the radius and mass cancels each other out?

[AyalaMrC]

I've had students in class do exactly what Billy did!

[neha]

wait, why doesn’t the parallel component of the weight do work on the cylinder and change its mechanical energy?