In a lever of Class I, the distance from the fulcrum to the effort point is $80\text{ cm}$, and the distance…
In a lever of Class I, the distance from the fulcrum to the effort point is $80\text{ cm}$, and the distance from the fulcrum to the load point is $20\text{ cm}$. What is the mechanical advantage of this lever setup?
$4$
$0.25$
$60$
$100$
Solution
Mechanical Advantage for a lever is given by $\text{Effort Arm Length} / \text{Load Arm Length} = 80\text{ cm} / 20\text{ cm} = 4$.