Problem Figure shows a pulley with a rope running over it. A man holds one side of the rope at A while a load, equal to the weight of the man, is attached to the other end of the rope at B. What would happen to the load if the man starts climbing up the rope with the velocity a relative to the rope? Neglect the weight of the pulley. Notes Problem is on topic "Theorem of the Change in the Angular Momentum of a System", i.e. dK, dt The velocity a is relative (see paragraph 89 "Relative, Transport and Absolute Motion").