Mathematics (AS & A Level) · Feb / March 2025 · Paper 42 · Question 4

0.3 kg 0.1 kg B A x m Two particles A and B have masses 0.3 kg and 0.1 kg respectively. The particles are attached to the ends of a light inextensible string. The string passes over a fixed smooth pulley, and the particles hang vertically below the pulley. Both particles are initially at a height of x m above horizontal ground (see diagram). The system is released from rest.

Read automatically from the paper; the printed page above is exact.