Torque is the product of the force and distance from the axis of rotation. unbalanced torque= applied torque-frictional torque
Moments of Inertia
The moments of inertia of an object is it resistance to angular acceleration about a given axis. This depends on the objects mass and the distribution of the mass about the axis of rotation.
Angular momentum
In the absence of external torque the total angular momentum before an event is equal to the total momentum after an event
