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19 May, 17:49

A lawn mower is pushed a distance of 100 ft. Along a horizontal path by a constant force of 60 lbs. Yhe handle of the lawn mower is held at a downward angle of 45° toward the horizontal. Explain what each value in this situation represents in relation to the formula w=F•PQ=||F||•||PQ||costheta. Then find the work done pushing the lawn mower

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  1. 19 May, 18:15
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    In the formula,

    w=F. PQ=|F|*|PQ|cosΘ

    F=force=60lbs

    PQ=distance covered=100ft

    Θ=angle=45°

    w = (60) (100) cos (45°)

    w=4242.64 lb. ft
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