A man weight 800N climbs up a stairs to height ... - JAMB Physics 1992 Question
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 option: c
power = \(\frac{\text {work done}}{time}\)
= \(\frac{800 \times 15}{12.5}\)
= 960W
= \(\frac{800 \times 15}{12.5}\)
= 960W
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