Question

If a hammer has a resistance arm of 3 inches and the effort arm is 15 inches. What is the mechanical advantage?

MA = 10
MA = 2
Ma = 15
MA = 5

Answer 1

ma 5

Step-by-step explanation:

Answer 2

Option D

MA=5

Step-by-step explanation:

Mechanical advantage is the the ratio of the output force to the input force hence

`MA=\frac {Effort arm length}{Load arm length}`

Substituting 15 inches for the effort arm length and 3 inches for the load arm length then we obtain the mechanical advantage as

`MA=\frac {15}{3}=5`