A wheel starts at 0 rad/s with angular acceleration 4 rad/s^2. After 5 s its angular velocity is:

  1. 20 rad/s
  2. 10 rad/s
  3. 40 rad/s
  4. 21 rad/s
Answer

A) 20 rad/s

omegaf = omegai + alpha t = 0 + (4)(5) = 20 rad/s. SLO P-11-B-09 · Application

Physics MCQ · More Circular and Rotational Motion MCQs · Practise