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A machine is designed to lift an object with a weight of 12 newtons. If the input force for the machine is set at 4 newtons, what is the mechanical advantage of the machine?
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2 votes
A machine is designed to lift an object with a weight of 12 newtons. If the input force for the machine is set

at 4 newtons, what is the mechanical advantage of the machine?

User CudoX
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8.4k points

2 Answers

5 votes
Mechanical advantage is calculated by output force/input force (Fo/Fi).

So, 12/4=3.
User Parvinder Singh
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7.8k points
4 votes
If the input force for the machine is set at 4 newtons, then the machine
may or may not be able to lift the object. If it IS able to lift an object that
weighs 12 newtons, then the mechanical advantage of the machine must
be at least 3 or more.
User JKL
by
8.8k points
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