Question

Explain Moment of Inertia.

Answer 1

1. The tendency of a rigid body to resist angular rotation is called moment of inertia.
2. It is a quantity that depends on the shape of the body, mass distribution and orientation of the rotational axis.
3. The ratio of angular momentum of a system to its angular velocity can also be called moment of inertia. i.e, $I=\frac{L}{\omega }$(where $I$=moment of inertia, $L$=angular momentum,$\omega$=angular velocity)
4. Its SI unit is $kg{m}^2$.