The angular momentum of a flywheel having a rotational inertia of 0.125 kgm2 decreases from 3.0 to 2.0 kgm2/s in a period of 1.5 s.
(a) What is the average torque acting on the flywheel during this period?
(b) Assuming a uniform angular acceleration, through how many revolutions will the flywheel have turned?
(c) How much work was done on the wheel?
(d) What was the average power supplied by the flywheel?