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Mitch used a pulley to move a crate. He applied an input force of 40 N to abox, and the pulley had an output force of 120 N. What is the mechanicaladvantage of the pulley? A. 160 B. 3 c. 80 D. 0.33

Mitch used a pulley to move a crate He applied an input force of 40 N to abox and the pulley had an output force of 120 N What is the mechanicaladvantage of the class=

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Explanation

Mechanical advantage is simply the ratio of the load to the effort

In our case, we have the input force = 40N. This input force is the effort

The output force is 120N. This is the load

So the mechanical advantage will be

[tex]mechanical\text{ advantage =}\frac{load}{effort}=\frac{120}{40}=3[/tex]

The mechanical advantage is 3

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