Angular momentum is conserved when:

  1. no external torque acts
  2. the body is at rest
  3. no external force acts
  4. kinetic energy is conserved
Answer

A) no external torque acts

tau = Delta LDelta t; zero torque means constant L. SLO P-11-B-20 · Application

Physics MCQ · More Circular and Rotational Motion MCQs · Practise