A bullet of mass 25 g moving with a velocity of `400 ms^(-1)` strikes a cardboard and goes out from the other end with a velocity of `300ms^(-1)`, find out the work done in passing through the cardboard.

A bullet of mass 20 g moving with a velocity of 500 m/s, strikes a free and goes out from the other side with a velocity of 400 m//s. Calculate the work done by the bullet in joule in passing through the tree.

A bullet of mass 10 g moving with a velocity 300 ms^(-1) strikes a wooden block and comes out from ot her side with a velocity of 200ms^(-1). Find the work done by t he resistive force on the bullet.

A bullet of mass 10 g moving with a velocity 300 ms^(-1) strikes a wooden block and comes out from ot her side with a velocity of 200ms^(-1). Find the work done by t he resistive force on the bullet.

A bullet of mass 10 g moving with a velocity 300 ms^(-1) strikes a wooden block and comes out from ot her side with a velocity of 200ms^(-1). Find the work done by t he resistive force on the bullet.

A bullet of mass 25 g moving with velocity of 500 ms^(-1) enters into a wooden block and comes out of it with a velocity of 100 ms^(-1) . Find the work done by the bullet while passing through the wooden block.

A body of mass 2 kg moving with uniform velocity of 40 ms^(-1) collides with another body at rest . If two bodies move together with a velocity of 20 ms^(-1) . Find the mass of the other body .

A bullet of mass 50 g moving with a speed of 300 ms^(-1) is brought to rest in 1 s . Find the impulse and the force .