Unit 6 · Energy and Momentum of Rotating Systems
Chapter 6.1
Rotational Kinetic Energy and Rolling
Release a ball and a yo-yo from the same height and the yo-yo, unwinding down its string, loses badly. Some of its drop was spent on spinning.
free · lesson 18 of 18
By the end
- 01Compute rotational kinetic energy and split a rolling object's kinetic energy into translational and rotational parts
- 02Compute the work done by a torque, and read it as the area under a torque–angle graph
- 03Apply rolling without slipping, explain why ideal rolling dissipates no energy, and predict ramp races from mass distribution
- 04Describe qualitatively how kinetic friction changes an object's motion while it rolls and slips