(a(i))[1]
State how a scalar quantity differs from a vector quantity.
(a(ii))[1]
Define momentum in words.
(b(i))[3]
Fig. 1.1 shows the car as it strikes the barrier. Calculate the initial velocity of the car.
(b(ii))[2]
On Fig. 1.2, sketch a speed-time graph to show the car’s motion from time $t = 0$ until it becomes stationary.