Physics, 28.04.2021 16:30, alexamorantess

a woman uses a force of 90N to raise a load of 300N by 1.8m with a pulley system. if she pulls a total of 8m of rope through the system. what is the efficiency of the system?

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a woman uses a force of 90N to raise a load of 300N by 1.8m with a pulley system. if she pulls a tot...