Physics (AS & A Level) · Oct / Nov 2022 · Paper 11 · Question 17
A man of mass 75 kg runs up a staircase consisting of 30 steps. Each step is 20 cm high. The man takes a time of 7.0 s to run from the bottom of the staircase to the top. What is the average rate of increase of gravitational potential energy of the man?
- A64 W
- B450 W
- C630 W
- D4400 W
As printed in the paper
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Correct answer: C. 630 W
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