Think about drive when we need to stop a moving body like an auto, we ascertain body's energy to figure how much compel require to stop it comparatively when we need to stop the pivot of a body we have to apply a torque against its momentum(angular force) and subsequently its snapshot of inertia,actually snapshot of latency is only a rotational closely resembling of straightforward idleness. So it is utilized to compute how much torque require to stop a pivoting body.
