Three masses of 1 kg each are at 1 m, 2 m and 3 m from an axis. Their moment of inertia about the axis is:

  1. 14 kg m^2
  2. 36 kg m^2
  3. 6 kg m^2
  4. 12 kg m^2
Answer

A) 14 kg m^2

I = sum mr^2 = 1 + 4 + 9 = 14 kg m^2. SLO P-11-B-18 · Application

Physics MCQ · More Circular and Rotational Motion MCQs · Practise