Answer:
The moment of inertia is basically a physical quantity which describes how easy it is for a body to rotate itself around a given axis.
In easier wording: Moment of Inertia is a body and when it starts rotating or moving, it will keep doing so until we stop it by force.
Step-by-step explanation:
For example, a car that is moving and active will continue to move even if you were to switch the engine off.