A bullet of mass 100gm moving with a velocity of `100ms^(-1)` just pierces through a plank of 100cm thick.If it is 50cm thick it emerges with a velocity

A bullet of mass 20 g moving with a speed of 500 cm*s^(-1) is just able to pierce a plank 5 cm thick. Calculate its velocity ,when the same bullet penetrates through the same plank 1 cm thick.

A ball of mass 100g moves with a velocity of 100m*s^(-1) . Find the wavelength of the wave associated with the moving ball.

A bullet of mass 10gm moving with a horizontal velocity 100m//s passes through a wooden block of mass 100gm . The block is resting on a smooth horizontal floor. After passing through the block the velocity of the bullet is 10m//s the velocity of the emerging bullet with respect to the block is .

A bullet of mass 10 g is fired from a gun with a velocity of 800ms^-1 .After passing through a mud wall 100cm thick its velocity drops to 100ms^-1 .Calculate the average resistance offered by the wall.

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.