A boy of mass 25 kg stands on a board of maas 10 kg which in turn is kept on a frictionless horizontal ice surface. The boy maks a jump with a velocity component 5m/s in a horizontal direction with respect to the ice. With what velocity does the board recoil? with what rate are tehboy and theboard separting from each other?

A boy of mass 25 kg stands on a board of maas 10 kg which in turn is kept on a frictionless horizontal ice surface. The boy maks a jump with a velocity component 5m/s in a horizontal direction with respect to the ice. With what velocity does the board recoil? with what rate are the boy and the board seperating from each other?

A boy of mass 25 kg stands on a board of mass 10 kg which in turn is kept on a frictionless horizontal ice surface. The boy makes a jump with a velocity component 5m/s in a horizontal direction with respect to the ice. With what velocity does the board recoil? With what rate are the boy and the board seperate from each other?

A boy of mass 25 kg stands on a board of mass 10 kg which in turn is kept on a frictionless horizontal ice surface. The boy makes a jump with a velocity component 5m/s in a horizontal direction with respect to the ice. With what velocity does the board recoil? With what rate are the boy and the board seperate from each other?

A boy of mass 40 kg stands on a rail road car of mass 60 kg , moving with velocity 10 m//s . Now , the boy begins to run with velocity 5 m//s , with respect to the car , in the same direction , the velocity of the car will be

Two blocks of masses 20 kg and 5 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of 15 m/s to the heavier block in the direction of lighter block. The velocity of centre of mass is

A body of mass 25 g is moving with a constant velocity of 5m/sec on a horizontal frictionless surface in vacuum. What is the force acting on the body?