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WAEC Physics 2021 Paper

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Question : 34

Total: 50

A man weighing 200 N runs up a staircase in 5s. If the height of the staircase is 9 m, calculate the power of the man.

1000 W
360 W
40 W
1800 W

Solution:

power = $\frac{\text{force} \cdot \text{distance}}{\text{time}}$ → $\frac{200 \cdot 9}{5}$

power = 36w

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