A pistol of mass 2kg fires a bullet of mass 0.01kg with a speed of 300m/s relative to the ground.
a. (i) Find the recoil speed of the pistol.
b. (ii) Calculate the kinetic energies of the bullet and the pistol just after the shot.
c. (iii) Express the pistol’s kinetic energy as a percentage of the bullet’s kinetic energy.