Efficiency of a machine is 60% . The effort moves through 3 meters , when the load moves 12 cm. What is the mechanical advantage?
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Explanation:
Efficiency = M.A./V.R
We know, V.R. = displacement of effort/ displacement of load
V.R. = 3cm/12cm
V.R.=1/4
Substituting in equation,
60/100=M.A./1/4
60/100=4 X M.A.
0.15 =M.A.
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