A record player is plugged in, uniformly accelerates to 45 revolutions per minute, and then is unplugged. The record player (a) takes 0.85 seconds to get up to speed, (b) spends 3.37 seconds at 45 rpms, and then (c) takes 2.32 seconds to slow down to a stop. What is the average angular acceleration of the record player during all three parts?
Want Lecture Notes? This is an AP Physics 1 topic.

Content Times:
0:08 Translating the problem
2:35 Solving part (a) - angular acceleration while speeding up
3:13 Solving part (b) - angular acceleration at a constant angular velocity
3:57 Solving part (c) - angular acceleration while slowing down
4:36 Reflecting on all 3 parts simultaneously

Multilingual? Please help translate Flipping Physics videos!

Next Video: Uniformly Angularly Accelerated Motion Introduction

Previous Video: Angular Acceleration Introduction

 

Please support me on Patreon!

Thank you to Aarti Sangwan, Scott Carter, and Christopher Becke for being my Quality Control team for this video.

 

Comments

There are no comments to display.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now

IP.Board Videos by DevFuse