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Question

If the mechanical advantage of a simple machine is 4, then the


A

output force is 4 times the effort

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B

effort is 4 times the output force

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C

efficiency is 4%

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D

work output is 4 times the input

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Solution

The correct option is A

output force is 4 times the effort


Mechanical advantage is the ratio of the force produced by a machine to the force applied to it. So, the output force is 4 times the effort.


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