A cricket ball of mass 150g is moving with a velocity of `12ms^(-1)` and is hit by a bat so that the ball is turned back with a velocity of `20ms^(-1)`. The force of blow acts for 0.01s on the ball. Find the average force exerted by the bat on the ball.

A ball of mass 100 g moving with a velocity of 10ms^-1 is stopped by a boy in 0.25sec. Calculate the force applied by the boy to stop the ball.

A cricket catches a ball of mass 150 g in 0.1 s moving with a speed of 20 ms^-1 . Then the experiences a foce of

A bullet of mass 40 g hits a mud wall with speed 400 m s^-1 . The bullet stops after penetrating 50 cm inside the wall. Find the average resistive force exerted by the wall on the bullets.

What will be the wavelength of a ball of mass 0.1 kg moving with a velocity of 10 ms ^(-1).

A hockey ball of mass 200 g travelling at 10 ms^( -1) is struck by a hockey stick so as to return it along its original path with a velocity at 5ms^( -1) . Calculate the change in momentum occurred in the motion of hockey ball by the force applied by hockey stick.

A body moves with constant velocity of 20 ms^-1 . The mass of body is 2 kg. The unbalanced force acting on the body is _________.

A tennis ball of mass 6.0 (10 *-2) kg is moving with a speed of 62ms-1 . Calculate the wavelength associated with this moving tennis ball.

From a rifle of mass 5000 g a bullet of 20 g is fired with a velocity of 500ms^(-1) with respect to the ground. Find the velocity of recoil of the rifle.