Fig. 2.1 depicts a wooden trolley with mass 1.2 kg resting on the bench’s rough surface.
A ball of mass 0.52 g moves horizontally towards the trolley. The ball becomes embedded in the trolley’s wood. The trolley then has an initial speed of 0.065 m/s.
(a(i))[2]
Calculate the impulse acting on the trolley.
(a(ii))[2]
Calculate the speed of the ball when it strikes the trolley.
(b)[3]
While the trolley travels over the rough surface, it decelerates and eventually comes to rest. Explain, in terms of work done, what energy change occurs as the trolley slows down.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “0.078 kg m s^{-1} or 0.078 N s” …