The input force that must be used if the machine has a mechanical advantage of 6 is 600 N / 6 = 100 N. Output / Input = MA
The efficiency of a machine is 80%. How much labor must be put into the machine for it to produce 50,000 J of work? The mechanical advantage of a machine is 4.5.
Simply multiply the input force by the mechanical advantage ratio to determine the output force.
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