Law of the lever
A lever is in balance when the forces acting on it are inversely proportional to their lever arms.
$$\frac{F_{2}}{F_{1}}=\frac{a}{b}\Rightarrow F_{1}\cdot a=F_{2}\cdot b$$
where,
F1, F2— forces;
a, b— lever arms.
Lever Balance FAQ
When is a lever balanced?
A lever is balanced when the clockwise and counterclockwise moments are equal.
What is the lever balance equation?
The balance condition is F1 · a = F2 · b.
