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Physics
Simple Machines
Mechanical Advantage and Efficiency
A machine has a velocity ratio 5 and is 80% efficient. What effort would be needed to lift a load of 2000N with the aid of this machine?
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Plz help me
(2000/5)/0.8 = 500 N
80% which is the same thing as 80รท100 = 0.8
Please can you put steps
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Where is the 0.8 coming from please
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