Physics 8.5 Rotational Kinetic Energy (8 of 19) A Brake Pushing Against a Rotating Wheel

In this video I will find the initial K.E.=?, force of friction=? (applied to a wheel), and the # of rotations=? before a wheel come to a complete stop.

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[ptyptypty]

excellent Video Lecture.... and very Practical

[Alexandervo]

Hello Michel, i have been using your videos to keep up with the massive workload of college physics, wouldn't be here without you. This isn't really related to this video but i was wondering if you could do a just for fun video about how pie was determined? It's always been a fascinating concept to me and whenever you make a just for fun, it's always much easier for me to understand it. thanks for all the hard work you've put into this channel for free. :)

[duharoshdy]

Thank you soo
you have been helping me alot ... my greetings.. from Egypt :)

[MisterJazztastic]

*Brake (in title) Thank you for these awesome videos!

[AliJoohy]

Thank you so much, Sir.

I need your help...
I am doing my master research in MSC in applied mathematics with the Complex differential equations or the DE in a complex domain, and I need some real life applications in this kind of DE.

if you are busy you can give just the names of these applications.

[navinprabumurugavel]

I couldn't see the answer no.of rotation because sub title hidden that answer

[jycxnvl]

How to deal with almost same question asking for work needed to stop a rotating disc?

[educatedmind]

What is the direction of the friction force? is it the same as the normal force? and how long would it take to stop? cant understand sir :(

[josejohnbernardaguilar]

it still confuses me how you formulated a formula for the heat loss. I would love a feedback from you. Thank you

[pavornthongyoo]

what if we're looking for the time taken for the wheel to stop?

[tasfiqjawaad]

So if the wheel was friction less, the wheel won't stop rotating despite apply any amount of force?

[rohitkhosla]

If we calculate alpha from torque = I * alpha.. and use alpha in equations of motion we get a different answer. 😔

[abdullahalmubin]

You have calculated only the rotational KE, what about the translational KE? Mustn't the break force stop Total KE?

[originalandfunnyname]

Why the normal force is 10 N? Shouldn't we include weight of the wheel?