Question

What is the definition of moment of inertia?

Answer 1

1. Moment of inertia is defined as the tendency of an object to remain in the state of rest or of constant rotational velocity.
2. The moment of inertia is equal to the sum of the products of the masses of each particle with the square of its distance from the axis of rotation.
3. Moment of inertia is mathematically written as, $I=\Sigma m{r}^2$ where $m$is the mass of the particle and $r$ is the distance of the particle from the axis of rotation.

4. The moment of inertia depends upon the shape, size, and orientation of the body. It also depends on the position and orientation of the axis of rotation.