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Physics, 08.06.2021 17:40 mjstew00763

A person is using a pulley to lift a heavy platform. The person pulls on the cord with a force of 120 N. The person pulls it down a distance of 1.0 m. The platform is pulled up by a force of 153 N. It moves up 0.6 N. What is the efficiency of the pulley?

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