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26 June, 21:32

How much power is required to lift a 60 kg bed to the top of a 3 meter flight of stairs in 10 seconds?

A. 17.6 W

B. 176 W

C. 1760 W

D. 17600 W

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Answers (1)
  1. 26 June, 21:35
    0
    176.58Watts

    Explanation:

    Power = work done / time

    Where mass (m) = 60kg

    Height (h) = 3m

    Time (s) = 10s

    Force of gravity = 9.81m/s^2

    Power=mgh/t

    Power = (60kg) * (9.81m/s^2) * (3m) / 10s

    Power = 176.58Watts
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