A torque of 1.2 N m acts on a wheel with I = 0.4 kg m^2. Its angular acceleration is:

  1. 6 rad/s^2
  2. 1.5 rad/s^2
  3. 0.48 rad/s^2
  4. 3 rad/s^2
Answer

D) 3 rad/s^2

tau = Ialpha Rightarrow alpha = 1.20.4 = 3 rad/s^2. SLO P-11-B-19 · Application

Physics MCQ · More Circular and Rotational Motion MCQs · Practise