A man weight 800N climbs up a stairs to height of 15m in 12.5s. What...
PHYSICS
JAMB 1992
A man weight 800N climbs up a stairs to height of 15m in 12.5s. What is the man''s average power output?
- A. 667W
- B. 810W
- C. 960W
- D. 15000W
Correct Answer: C. 960W
Explanation
power = \(\frac{\text {work done}}{time}\)
= \(\frac{800 \times 15}{12.5}\)
= 960W
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