Question

Calculate the mechanical advantage for a load of 40 N, when the required force to lift the load is 15 N.

• A. 2.7
• B. 2.07
• C. 0.7
• D. 1.7

Answer 1

The correct option is A

2.7

Here we use the formula of mechanical advantage as,

MA = $\frac{Load}{Effort}$ = $\frac{40}{15}$ = 2.7

Since, MA is a ratio of two same quantities, it does not have a unit. It is just a constant for the given system.