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Answer on Mechanics | Relativity Question for Janice

Question #18433
A lever is used to lift a heavy load. When a 52 N force pushes the left end of the lever down 1.28 m, the load rises 0.23m.
4) If the lever is only 84% efficient, what is the work output?
5) If the lever is only 84% efficient, what would be the weight of the load it could lift with this output?

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