A plate of mass `M` is held at rest by firing bullets from below. Each bullet has a mass `m`, velocity `u` (up) just before hitting and stops after hitting the plate for a moment and falls. Determine the number of bullets striking the plate Fig. per unit time

A body of mass m freely falls to the ground. A heavy bullet of mass M shot along the horizontal hits the falling body and sticks in it. How will the time of fall of the body to the ground change? Determine the time t of fall if the bullet is known to hit the body at the moment it traverses half the distance, and the time of free fall from this height is to. Assume that the mass of the bullet is much larger than the mass of the body (M gt gt m) . The air drag should be neglected.

A machine gun of mass M fires n bullets per second .The mass and speed of each bullet is m and v respectively. Then force exerted on the machine gun is :

A bullet of mass m is fired from a gun of mass M. The recoiling gun compresses a spring of force constant k by a distance d. Then 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 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 fire 360 bullets per minute and each bullet travels with a velocity of 600 m/s. If the mass of each bullet is 5 gm, find the power of the machine gun.