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13 February, 23:33

You are pulling a child in a wagon. The rope handle is inclined upward at a 60o angle. The tension in the handle is 20 N. How much work do you do if you pull the wagon 100 m at a constant speed?

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  1. 13 February, 23:49
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    1000 J

    Explanation:

    Tension force, F = 20 N

    distance, d = 100 m

    angle, θ = 60°

    Work done = force x distance x Cos θ

    W = 20 x 100 x Cos 60

    W = 2000 x 0.5

    W = 1000 J

    thus, the work done is 1000 J.
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