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26 July, 18:11

A mover brings a box up the stairs in 10 seconds. If he applied a force of 20 N over a distance 10 m on the box, calculate the power required for him to complete this action.

0.05 watts

201 watts

2,000 watts

20 watts

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Answers (1)
  1. 26 July, 18:39
    0
    20 Watts

    Explanation:

    Work = force * distance

    W = (20 N) (10 m)

    W = 200 Joules

    Power = work / time

    P = 200 J / 10 s

    P = 20 Watts
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