# Is MOMENT OF INERIAis defined only for rotating bodies ? Please reply soon .Thank You .

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Moment of Inertia is defined for any body about any axis.

The moment of inertia is used to do calculations for angular momentum or torque required to rotate the object at a required angular speed or acceleration.

It is useful in rotational mechanics. Moment of inertia exists for any body about any axis.

If the objects do not rotate then linear quantity of the body - mass - is used for calculating the needed physical quantities.

The moment of inertia is used to do calculations for angular momentum or torque required to rotate the object at a required angular speed or acceleration.

It is useful in rotational mechanics. Moment of inertia exists for any body about any axis.

If the objects do not rotate then linear quantity of the body - mass - is used for calculating the needed physical quantities.