A 2.8-kg 13-cm-radius cylinder, initially at rest, is free to rotate about the axis of the cylinder. A rope of negligible mass is wrapped around it and pulled with a force of 16 N. (a) Find the magnitude of the torque exerted by the rope. in N · m (b) Find the angular acceleration of the cylinder. in rad/s2 (c) Find the angular velocity of the cylinder at t = 1.30 s. in rad/s