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10 May, 13:02

If 68 W of power is produced in 18 seconds, how much work is done?

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  1. 10 May, 13:09
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    Answer: 1224 joules

    Explanation:

    Given variables are:

    Power (p) = 68 W

    Time taken (t) = 18 seconds

    work done (w) = ?

    Recall that power is the rate of work done per unit time i. e Power is obtained by dividing the work done by the time taken.

    Hence, Power = work / time

    Make work the subject formula

    work = power x time

    work = 68 watts x 18 seconds

    work = 1224 joules

    Thus, 1224 joules of work is done.
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