A-LevelPhysicsWork, energy and power9702/12 · May/June 2020 · Q171 Mark
An escalator in an underground station has 25 people standing on it and is moving with a speed of 4.3 m s⁻¹. The average mass of a person is 78 kg and the angle of the escalator to the horizontal is 40°. What is the minimum power required to lift these people?
A5.4 kW
B6.4 kW
C53 kW
D63 kW
✓ Correct answer
C: 53 kW
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Work, energy and power and see which topics are most likely to come up next.
Sign up free →