A 90-m-long, 9.6-mm-diameter rope hangs freely from a ledge. The density of the rope is 75 g/m. Use 9.8 m/s² for the acceleration due to gravity. How much work is needed to pull the entire rope to the ledge?

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15-07-2024
Physics

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A 90-m-long, 9.6-mm-diameter rope hangs freely from a ledge. The density of the rope is 75 g/m. Use 9.8 m/s² for the acceleration due to gravity. How much work is needed to pull the entire rope to the ledge?

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