Question

The unit of moment of inertia will be in ______

(a) Length*distance^2

(b) Area^2*length

(c) Area*distance^3

(d) kilogram metre squared

I had been asked this question in an online quiz.

Asked question is from Centres of Gravity and Moments of Inertia of Area in division Development of Surfaces, Isometric Projections, Perspective Projections & Transformation of Projections of Civil Engineering Drawing

Answer 1

Right option is (d) kilogram metre squared

The best explanation: The amount of torque needed to cause any given angular acceleration (the rate of change in angular velocity) is proportional to the moment of inertia of the body. Moment of inertia may be expressed in units of kilogram metre squared (kg. m^2) in SI units and pound-square feet (lb. ft^2) in imperial or US units.