alvares1489 alvares1489
  • 08-10-2019
  • Physics
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A boy of mass 60 kg runs up a staircase of 50 steps in 10s. If height of each steps is 12 cm,find the power

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MathPhys
MathPhys MathPhys
  • 08-10-2019

Answer:

350 W

Explanation:

50 steps × 0.12 m/step = 6 m

Power = work / time

P = mgh / t

P = (60 kg) (9.8 m/s²) (6 m) / 10 s

P = 352.8 W

Rounding to two significant figures, the power is 350 W.

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