A fywheel rotating at 3.5 rev/s is accelerated uniformly for 4 s until it is rotating at 9 rev/s. Determine the angular acceleration and the number of revolutions made by the fywheel in the 4 s. A...

A fywheel rotating at 3.5 rev/s is accelerated uniformly for 4 s until it is rotating at 9 rev/s. Determine the angular acceleration and the number of revolutions made by the fywheel in the 4 s.

A fywheel rotating at 20 rev/min is accelerated uniformly for 10 s until it is rotating at 40 rev/min. Determine the angular acceleration and the number of revolutions made by the fywheel in the 10 s.