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A boy of mass 50 kg runs up a staircase ...

A boy of mass 50 kg runs up a staircase of 45 steps 9 s. If the height of each step is 15 cm, find his power. Given, `g = 10" ms"^(-2)`

A

375 W

B

275 W

C

275 J

D

375 J

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The correct Answer is:
A
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