A fan running at 30 rad/s is switched off and stops uniformly in 10 s. The number of revolutions it makes while stopping is about:

  1. 4.8
  2. 47.7
  3. 150
  4. 23.9
Answer

D) 23.9

theta = omegai + omegaf2t = 15 10 = 150 rad = 1502pi approx 23.9 rev. SLO P-11-B-09 · Application

Physics MCQ · More Circular and Rotational Motion MCQs · Practise