Answer to Question #79716 in Mechanics | Relativity for Themson

Question

A raft of mass M with a man of mass 'm' aboard stays motionless on the surface of a lake. The man moves 'l' relative to the raft with velocity V(t) and then stops . Assuming the water resistance be negligible, find
1. Displacement of the raft relative to the shore.
2. Horizontal component of the force with which the man acted on the raft during the motion.