1. A rifle fires a bullet of mass 0.020 kg vertically upwards through the air. As it leaves the rifle, the speed of the bullet is 350 m/s.

Calculate 

(i) the energy in the kinetic store of the bullet as it leaves the rifle,  

energy = ...........................................................[3]

(ii) the maximum possible height that the bullet can reach.    

maximum height = ...........................................................[2]