Vectors as Forces

Resultant Force $\vec{r}$

The Vector Addition result of 2 force vectors

Equilibrium Force $-\vec{r}$

An equilibrium force is resultant force in the opposite direction. When you add the 2 together, you get $\vec{0}$

Triangle Inequality

$\vec{a}$,$\vec{b}$ and $\vec{c}$ can be in equilibrium if: $|\vec{a}|+|\vec{b}|\ge |\vec{a}+\vec{b}|$

Vectors as Velocity

• Wind Speed Questions