A pulley system has an efficiency of 87.5 percent. How much of the rope must be pulled in if a force of 648 N is needed to lift a 105 kg desk 2.46 m?… | Cheap Nursing Papers
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A pulley system has an efficiency of 87.5 percent. How much of the rope must be pulled in if a force of 648 N is needed to lift a 105 kg desk 2.46 m?…

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A pulley system has an efficiency of 87.5 percent.How much of the rope must be pulled in if a forceof 648 N is needed to lift a 105 kg desk 2.46 m?(Disregard friction.)

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