Question

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

Answer 1

Step-by-step 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

`mechanical\text{ advantage =}(load)/(effort)=(120)/(40)=3`

The mechanical advantage is 3