Physics (AS & A Level) · Oct / Nov 2022 · Paper 12 · Question 17

A motor is used to lift a load vertically upwards. The load has weight W. The motor produces useful power output P. The load is lifted at constant velocity v. Which expression gives the time taken for the motor to lift the load vertically upwards through a distance d?

1. A\frac{P}{Wd}
2. B\frac{Wv}{P}
3. C\frac{Wd}{P}
4. D\frac{Pv}{W}

As printed in the paper