Physics (AS & A Level) · May / June 2018 · Paper 11 · Question 14

A train of mass 3.3 × 10⁶ kg is moving at a constant speed up a slope inclined at an angle of 0.64° to the horizontal. The engine of the train is producing a useful output power of 14 MW. Assume that there are no frictional forces opposing the motion of the train. What is the speed of the train?

1. A0.43 m s⁻¹
2. B4.2 m s⁻¹
3. C39 m s⁻¹
4. D380 m s⁻¹

As printed in the paper