A boy of mass 50 kg runs up a staircase of 45 steps in 9 seconds. If the height of each steps is 15 cm. Find his power. (Take g = 10 m s |
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(a) |
275 W |
(b) |
350 W |
(c) |
325 W |
(d) |
375 W |

A boy of mass 50 kg runs up a staircase of 45 steps in 9 seconds. If the height of each steps is 15 cm. Find his power. (Take g = 10 m s |
|||||||

(a) |
275 W |
(b) |
350 W |
(c) |
325 W |
(d) |
375 W |

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