Answer to Question #31418 in Mechanics | Relativity for kedir kemal

Question

A light flexible rope is wrapped several times around a solid cylinder of mass 50 kg and diameter 0.12m, which rotates without friction about fixed horizontal axis. The free the end of the rope is pulled with a constant force of magnitude 9N for a distance of 2m. If the cylinder was initially at rest, find its final angular velocity and the final speed of the rope.