Physics (AS & A Level) · May / June 2018 · Paper 12 · Question 7

A sky-diver falls vertically from a helicopter and reaches constant (terminal) velocity. The graph shows the variation with time t of the speed v of the sky-diver. [graph of v against t, starting at origin, increasing with decreasing gradient, then becoming horizontal] Which graph shows the variation with time t of the distance d fallen by the sky-diver?

1. A[graph of d against t: curve starting at origin with increasing gradient, concave upwards]
2. B[graph of d against t: curve starting at origin, gradient decreasing to zero, becoming horizontal]
3. C[graph of d against t: curve starting at origin, initially flat then increasing gradient, concave upwards]
4. D[graph of d against t: curve starting at origin with decreasing gradient, concave downwards]

As printed in the paper