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3. In the pulley system shown, all the pulleys are massless and frictionless and the rope is of negligible mass. The block has a weight

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3. In the pulley system shown, all the pulleys are massless and frictionless and the rope is of negligible mass. The block has a weight of 2500 newtons. (a) Find the tension in the rope if the block is lifted at a constant velocity. (b) Find the mechanical advantage of the pulley system. 2+ 2 2500 N

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