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9 April, 14:54

How much work is done in holding a 15 N sack of potatoes while waiting in line at the

grocery store for 3 minutes?

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  1. 9 April, 18:22
    0
    Answer: 2700 Joules

    Explanation:

    Given variables are:

    Workdone (w) = ?

    Weight of sack (w) = 15N

    Time taken (t) = 3 minutes

    The standard unit of time is seconds, so convert 3 minutes to seconds

    (If 1 minute = 60 seconds

    3 minutes = 3 x 60 = 180 seconds)

    Recall that work is done is when force is applied on an object over a distance

    i. e Workdone = force x distance.

    (However, the force acting on the sack of potatoes is weight)

    Hence, workdone = weight x time

    w = 15N x 180 seconds

    w = 2700 J

    thus, 2700 joules of work was done.
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