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25 September, 23:54

A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 degrees downward from the horizontal. Find the work done by the shopper on the cart as the shopper moves along a 50 m length of aisle.

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  1. 26 September, 00:05
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    So:

    F = 35 N

    α = 25 °

    d = 50 m

    Knowing that W = F. d. cosα

    Then: W = 35 * 50 * cos25°

    ⇔ W = 1586 J
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