Question

Mechanical advantage describe how simple machines?

A: are manufactured
B: change the total amount of work that is done
C: multiply the input force

Answer 1

answer would be C. multiply the input force.

Answer 2

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 =
`(E)/(L)=(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)* E`=
`F_(L)* L`