Physics (AS & A Level) · May / June 2026 · Paper 14 · Question 16

An electric motor raises an object of mass m at a constant speed v through a height h in time t. The acceleration of free fall is g. What is the change in energy of the object in time t?

1. Amgh
2. Bmgh + \frac{1}{2}mv^2
3. Cmgv
4. D\frac{mgv}{t}

As printed in the paper