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12 August, 22:39

9. A woman runs a kilometer using a force of 210N and a power output of 500W. How

long in minutes does it take this woman to complete 1 kilometer?

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Answers (2)
  1. 13 August, 00:40
    0
    Answer:420seconds

    Explanation:

    Force=210N power=500W

    distance=1km=1000m

    Time=?

    Time = (force x distance) / power

    Time = (210x1000) / 500

    Time=210000/500

    Time=420seconds
  2. 13 August, 00:41
    0
    7 minutes

    Explanation:

    Power = work / time

    Power = force * distance / time

    500 W = 210 N * 1000 m / t

    t = 420 s

    t = 7 min
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