Question 6
Work, Energy and PowerA man weighing 800N climbs up a flight of stairs to a height of 15m in 12.5s. What is the man's average power output?
- A.667W
- B.810W
- C.960W
- D.15000W
Show the answer and explanation
Answer: C (960W)
Explanation
Work done = 800 × 15 = 12 000 J. Power = 12 000 ÷ 12.5 = 960 W.