Question

The unit of mass moment of inertia in S.I. units is

(a) m^4

(b) kgf-m-s^2

(c) kg-m^2

(d) N-m

The question was posed to me during a job interview.

My query is from Kinetics of Motion in division Kinematics & Kinetics of Motion of Machine Kinematics

Answer 1

The correct answer is (c) kg-m^2

For explanation: Moment of inertia is the distance, from a give  reference, where the whole mass of body is assumed to be concentrated to give the same value of I. The unit of mass moment of inertia in S.I. units is kg-m^2.