Physics, asked by eminemifyme7606, 1 year ago

John uses a pulley to lift the sail on his sailboat. The sail weighs 150 N, and he must lift it 4.0 m. The pulley is 50% efficient. How much work must be done to lift the sail? How much work must John do on the rope to lift the sail?

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Answered by jkgupta72

1

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