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A person does 50j of work to lift a crate using a pulley. The plley's work output is 42j. What is the pulleys mechanical efficiency?
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Feb 14, 2019
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A person does 50j of work to lift a crate using a pulley. The plley's work output is 42j. What is the pulleys mechanical efficiency?
Physics
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GlenRSmith
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(42/50)*100=84%
Because efficiency =(Useful/total)*100
Hope this helps!
Sweetzyl Pili
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Feb 21, 2019
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Sweetzyl Pili
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