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17 January, 15:10

How much work can a 22kw car engine do in 60 seconds

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Answers (2)
  1. 17 January, 15:22
    0
    13.2 x 10^5 J

    Explanation:

    Power = work/time

    Given

    Power = 22kw

    = 22 x 1000 = 22000w

    Time = 60 secs

    Therefore

    22000 = work/60

    Cross multiply

    Work = 22000 x 60

    = 1320000

    = 13.2 x 10^5J
  2. 17 January, 16:21
    0
    Work done = 1320000J or 1.32 * 10^6J

    Explanation:

    power = 22kw = 22000w

    Time = 60seconds

    From: power = work done / Time

    work done = power * time

    work done = 22000 * 60

    work done = 1320000J or 1.32 * 10^6 J
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