A boy of mass 50 kg, runs up a staircase of 45 steps in 10s. If the he – McqOptions

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1.	A boy of mass 50 kg, runs up a staircase of 45 steps in 10s. If the height of each step is 14 cm. find his power. Take g = 10 ms-2
A.	315 ms
B.	315 W
C.	337.5 W
D.	310.55 J
Answer» C. 337.5 W

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