A spherical ball of mass `10^(-6)` kg hits a wall 1000 times per second normally with a velocity of 1000 m/s and rebounds with same velocity along the initial direction. The force experienced by the wall is

A body of mass 2kg collides with a wall with speed 100 m/s and rebounds with same speed. If the time of contact was 1/50 second, the force exerted on the wall is

A body of mass M hits normally a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is

A horizontal jet of water coming out of a pipe of area of cross - section 20 cm^(2) hits a vertical wall with a velocity of 10 ms^(-1) and rebounds with the same speed. The force exerted by water on the wall is,

2000 small balls, each weighing 1 g, strike one square cm of area per second with a velocity of 100 m/s normal to the surface and rebounds with the same velocity. The pressure on the surface is

A ball of mass 600 gm strikes a wall with a velocity of 5 ms^(-1) at an angle 30^@ with the wall and rebounds with the same speed at the same angle with the wall. The change in momentum of the ball is, (in kg ms^(-1) )

10,000 small balls, each weighing 1 gm , strike one square cm of area per second with a velocity 100 m/s in a normal direction and rebound with the same velocity. The value of pressure on the surface will be

A body of mass m collides against a wall with the velocity v and rebounds with the same speed. Its magnitude of change of momentum is

A ball of mass 1 kg drops vertically on to the floor wit a speed of 25 m//s . It rebounds with an initial velocity of 10 m//s . What impulse acts on the ball during contact ?

n balls each of mass m impinge elastically each second on a surface with velocity u. The average force experienced by the surface will be

A small sphere of mass 1kg is moving with a velocity (6hati+hatj)m//s . It hits a fixed smooth wall and rebounds with velocity (4hati+hatj)m//s . The coefficient of restitution between the sphere and the wall is