Physics (AS & A Level) · Oct / Nov 2025 · Paper 13 · Question 8

A sphere falls from rest through the air. The graph shows the variation with time of the sphere's velocity. [graph of velocity against time, curve rising from origin and levelling off, with point P marked on the curve] Which diagram shows the forces acting on the sphere when it is at the velocity corresponding to point P on the graph?

1. Aair resistance upwards, weight downwards, air resistance arrow longer than weight arrow
2. Bweight downwards only
3. Cair resistance upwards, weight downwards, air resistance arrow shorter than weight arrow
4. Dair resistance upwards, weight downwards, air resistance arrow equal in length to weight arrow

As printed in the paper