A boy of mass `50kg` is standing at one end of a boat of length `9m` and mass `400kg`. He runs to the other end. The distance through which the centre of mass of the boat boy system moves is

A boy of mass m is standing at one end of a boat of mass M and length l. The boy walks to the other end, the displacement of the

A man of 50 kg is standing at one end on a boat of length 25m and mass 200kg .If he starts running and when he reaches the other end, has a velocity 2ms^(-1) with respect to the boat.The final velocity of the boat is

A boy of mass 40 kg is standing at one ned of the boat (mass : 80 kg) of length 6m in a river. Now the boy reaches to other end of the boat. Find the distance moved by the boat and the distance travelled by boy as seen from the bank of river.Assume that the system is at rest and no friction between the boat and the water.

A boy having a mass of 40kg stands at one end A of a boat of length 2m at rest. The boy walks to the other end B of the boat and stops. What is the distance moved by the boat? Friciton exists between the feet of the boy and the surface of the boat. But the friction between the boat and the water surface may be neglected. Mass of the boat is 15kg .

Two persons A and B of weight 80 kg and 50 kg respectively are standing at opposite ends of a boat of mass 70 kg and length 2 m at rest. When they interchange their positions then displacement of the centre of mass of the boat will be :-

A man of mass 85kg stands on one end of a uniform board of length 2m and mass 15kg. The other end is tied to the floor by a steel cable, and the board is supported from below just 0.5 m from the cable end (see figure).

A boy of mass 30 kg is standing at one end on a stationary boat over a lake. The boat has a mass 70 kg and length 10 m. Now the boy walked to the other end of the boat. Relative to the ground

A boy (mass of 40 kg) is standing at one end of a boat (mass of 60 kg) in still water. The length of the boat is 10 m and the boy takes 2s to reach at other end of boat moving with constant speed. Assuming no friction between the boat and the water. (i) The distance covered by the boat is 4 m (ii) The distance covered by the boy with respect to the ground is 6 m . (iii) The velocity of the boy with respect to the ground is lt 5 m//s (iv) The velocity of the boy is 3 m//s