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7 July, 13:59

The book slides from you to beth and then from beth to carlos, along the lines connecting these people. what is the work done by friction during this displacement?

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  1. 7 July, 14:29
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    Note that

    W (friction) = - uk m g d

    Where

    uk = 0.2

    m = mass = 1.9 kg

    d = total distance = 8 m * 2 = 16 m

    Thus,

    W (friction) = - 59.584 J

    The answer is - 59.584 J
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