A man of mass m moves with a constant speed on a plank of mass M and length l kept initially at rest on a frictionless horizontal surface, from one end to the other in time t. The speed of the plank relative to grounud while man is moving, is

No external force: Stationery mass relative to an inertial frame remains at rest A man of mass m is standing at one end of of a plank of mass M. The length of the plank is L and it rests on a frictionless horizontal ground. The man walks to the other end of the plank. Find displacement of the plank and man relative to the ground.

A man of mass M stands at one end of a plank of length L Which lies at rest on a frictionless surface . The man walks to the other end of the plank. If the mass of the plank is 3M, the distance that the man moves relative to the ground is

A man of mass m is standing on a plank of equal mass m resting on a smooth horizontal surface. The man starts moving on the plank with speed u relative to the plank. The speed of the man relative to the ground is

A man of mass m is standing at one end of a trolley of mass M and length L placed at rest on a smooth horizontal surface. The man starts moving towards the other end and covers distance L, then distance moved by man w.r.t ground is

A man of mass M stands at one end of a plank of length L which lies at rest on a frictionless surface. The man walks to the other end of the planck. If the mass of the planck is M/2 , then the distance that the man moves relative to the ground is

A man of mass m stands at the left end of a uniform plank of length L and mass M, which lies on a frictionaless surface of ice. If the man walks to the other end of the plank, then by what distance does the plank slide on the ice?

A man of mass m_(1) stands at an edge A of a plank of mass m_(2) & length l which is kept on a smooth floor If man walks from A to the other edge B find displacement of plank.

A man of mass m is standing on a stationary board of mass M kept on a fixed frictionless horizontal surface. The man starts running rightward on the board and acquires a speed u relative to the board. Find his speed relative to the fixed surface.