The angular momentum of a flywheel having a rotational inertia of 0.100 kg·m2 about its central axis decreases from 3.00 to 0.400 kg·m2/s in 0.80 s.
(a) What is the magnitude of the average torque acting on the flywheel about its central axis during this period? -3.25 N * m
(b) Assuming a uniform angular acceleration, through what angle does the flywheel turn?
(c) How much work is done on the wheel?
(d) What is the average power of the flywheel?