A rope is thrown over a beam and one end is tied to a 300 n bundle of lumber you pull the free end of the rope m with a force of 400 n to lift the lumber off the ground how much work have you done?

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A rope is thrown over a beam and one end is tied to a 300 n bundle of lumber you pull the free end of the rope m with a force of 400 n to lift the lumber off the ground how much work have you done?