A bullet moving with a velocity of `100ms^(-1)` pierces a block of wood and moves out with a velocity of `10ms^(-1)`. If the thickness of the block reduces to one half of the previous value, what will be the emerging velocity of the bullet ?

A body is moving with a velocity of 10 m/s. If the motion is uniform, what will be the velocity after 10s?

A body is moving with uniform velocity of 10 ms^-1 for last 10 s, what is its acceleration?

A bullet of mass a moving with a velocity b is made to hit a target of mass c and got embedded into it .Find the velocity of the final system.

A beam of electron is moving with a velocity of 3xx10^6ms^-1 and carries a current of 1muA . How many electrons are in 1 m of the beam?

A bullet of mass 20 g moving with a speed of 500ms^(-1 ) strikes a wooden block of mass 1 kg and gets embedded in it. Find the speed with which block moves along with the bullet.

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

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) ?

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.

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.