A rifle of mass fires a bullet of mass horizontally
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A rifle of mass 4.0kg fires a bullet of mass 20g horizontally. The bullet leaves the muzzle with a speed of 500m/s relative to the ground.
(a) Calculate the recoil velocity of the rifle.
(b) Find the momentum of the bullet and of the rifle after firing.
(c) Determine the total kinetic energy of the bullet–rifle system immediately after the shot.