N bullet each of mass `m` kg are fired with a velocity `v` `ms^-2` at the rate of n bullets per second upon a wall. The reaction offered by the wall to the bullets is given by

N bullet each of mass mkg are fired with a velocity vms(-2) at the rate of n bullets per second upon a wall. The reaction offered by the wall to the bullets is given by

A disc of mass 10 g is kept floating horizontal in the air by firing bullets, each of mass 5g, with the same velocity at the same rate of 10 bullets per second. The bullets rebound with the same speed in positive direction . The velocity of each bullet at the time of impact is (Take g = 9.8 ms^(-2))

A disc of mass 100 g is kept floating horizontally in air by firing bullets, each of mass 5 g with the same velocity at the same rate of 10 bullets per second. The bullets rebound with the same speed in opposite direction. Find the velocity of each bullet at the time of impact.

A bullet leaves the rifle of mass one kg and rifle recoils thereby with velocity 30 cm/s. If the mass of the bullet is 3 g, the velocity of the bullet is

A gun fires N bullets per second, each of mass m with velocity v. The force exerted by the bullets on the gun is :

A gun fires N ' bullets per second,each of mass m with velocity v .The force exerted by the bullets on the gun is

A machine gun of mass 10 kg fires 20 g bullets at the rate of 10 bullets per second with a speed of 500 ms^(-1) . What force is required to hold the gun in position ?

A machine gun of mass 10 kg fires 20 g bullets with speed of 500 m/s at the rate of 10 bullets per second. To hold the gun steady in its position how much force is necessary?

A bullet of mass m is fired with velocity v in a large bulk of mass M. The final velocity v' will be