A wheel with rotational inertia .146 kg-m2 turns through 40 rev as it slows down from an angular speed of 1.5 rad/s to a stop. Assume constant angular deceleration.
A. how long does it take to come to rest,
B. what is the angular deceleration.
C. how long does it take to complete the first 20 rev.
D. what is the magnitude of the torque applied to it.