Question

What is the physical importance of the moment of inertia?

Answer 1

Moment of inertia:

1. Inertia is a property of matter that causes it to remain at rest or in uniform motion in the same straight line unless acted on by an external force.
2. Inertia is an object's natural tendency to avoid a change in its state of action or rest.
3. The mass of an object is a measure of its inertia.

Physical importance of the moment of inertia:

1. The moment of inertia has the same physical significance as a mass in translational motion.
2. The mass of a body is used to calculate inertia in translational motion.
3. Inertia increases with increasing mass.
4. The force required to generate linear acceleration will also rise.
5. In rotational motion, the greater the moment of inertia, the greater the angular acceleration.