Question

Mechanical advantage describe how simple machines?

Answer 1

Answer:C: multiply the input force

Explanation:

A lever is a simple machine consisting of a bar pivoted or supported at a point (known as Fulcrum) about which it can rotate to perform the task.

Mechanical Advantage MA = $\frac{E}{L}=\frac{F_{L}}{F_{E}}$

where E→ length of effort arm from the pivot

         L→ length of load arm from the pivot

         $F_{E}$→ force on the end of effort arm

         $F_{L}$→ force on the end of load arm

By the law of conservation of angular momentum:-

$F_{E}\times E$=$F_{L}\times L$

Answer 2

answer would be C. multiply the input force.