A bullet of mass 25 g strikes horizontally a block of wood with a velocity of `250ms^(-1)` and penetrates it a distance of 1.0 m. Calculate the resistance to be uniform. How far would the bullet have penetrated, if the speed of the bullet has been `200ms^(-1)` ?

A bullet of mass 10 kg travelling horizontally with a velocity of 150 ms^(-1) strikes a stationary wooden block and come to rest in 0.03 s. Calculate the distance of penetration of the bullet into the block. Calculate the magnitude of force exerted by the wood in block in the bullet.

A bullet of mass 20 g is fired horzontally with a of 100 ms^-1 from a pistol of mass 1.5 kg. Calculate the recoil velocity of the pistol.

A bullet of mass 50 g is fired from a gun. If the bullet acquires a velocity of 100 m s^(1) in 0.1 second, what is the recoil force on the gun?

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 bullet of mass 0.04 kg moving with a speed of 90 ms^-1 enters a heavy wooden block and is stopped after a distance of 60 cm. What is the average resistive force exerted by the block on the bullet?

A ball is projected horizontally with a velocity of 4 ms^-1 .What will be its velocity after 0.7 sec (g=10 m s^-2) ?