The 15-lb cylinder is initially at rest on a 5-lb plate. If a couple moment M = 40 lb • ft...

The 15-lb cylinder is initially at rest on a 5-lb plate. If a couple moment M = 40 lb • ft is applied to the cylinder, determine the angular acceleration of the cylinder and the time needed for the end B of the plate to travel 3 ft and strike the wall. Assume the cylinder does not slip on the plate, and neglect the mass of the rollers under the plate.