A bullet of mass 0.020 kg is fired vertically upwards from a rifle through the air. When it leaves the rifle, its speed is 350 m/s.
(a(i))[3]
Calculate the kinetic energy of the bullet just as it leaves the rifle.
(a(ii))[2]
Calculate the maximum height that the bullet could reach.
(b(i))[2]
Explain, using the forces on the bullet, why this happens.
(b(ii))[2]
State what becomes of this energy.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “KE = ½ m v^{2}.” …
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