... the total mass times the acceleration of the centre of mass, and is independent of any rotation. Moment of momentum The moment of momentum of a particle about a point 0 is defined ... a flywheel of moment of inertia I, and the damping torque at the load is equal to C times the angular velocity of the load. The moment of inertia of the rotor of the motor ... [dA/dt],, is the rate of change of a vector as seen from the fixed set of axes, aAlat = [dA/dt],, is the rate of change of a vector as seen from the rotating set of axes, and o is...