Physics (AS & A Level) · Oct / Nov 2020 · Paper 11 · Question 18

A train of mass 300 000 kg is accelerating at 0.80 m s–2. At one instant, the speed of the train is 5.0 m s–1 and the resistive force to its motion is 15 kN. At this instant, what is the rate of increase of kinetic energy of the train?

1. A0.075 MW
2. B1.2 MW
3. C1.3 MW
4. D3.8 MW

As printed in the paper