why efficiency of leaver is always less than hundred
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The output work is always less than the input work because some of the input work is used to overcome friction. Therefore, efficiency is always less than 100 percent. ... A: There would be less friction to overcome if you used a dolly because of the wheels. So the efficiency of the ramp would be greater with the dolly.
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The output work is always less than the input work because some of the input work is used to overcome friction. Therefore, efficiency is always less than 100 percent. ... A: There would be less friction to overcome if you used a dolly because of the wheels. So the efficiency of the ramp would be greater with the dolly.
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