A point is 0.3 m from the axis of a wheel rotating at 20 rad/s. Its centripetal acceleration is:

  1. 120 m/s^2
  2. 240 m/s^2
  3. 6 m/s^2
  4. 60 m/s^2
Answer

A) 120 m/s^2

a = romega^2 = (0.3)(20)^2 = 120 m/s^2. SLO P-11-B-08 · Understanding

Physics MCQ · More Circular and Rotational Motion MCQs · Practise