# Average velocity calculator

### What is velocity?

Speed is a scalar quantity. So you can only say e.g.: "my car can go 20 mph".
On the contrary velocity is a vector quantity so it does not include only magnitude of speed but also a direction. Example for this would be: "object is moving 2.6 m/s north."

#### Formula to get average velocity

$$v_a = \dfrac{v + v_0}{2} \ \$$ where

 $$v_a$$ is average velocity $$v$$ is velocity $$v_0$$ is initial velocity

#### Formula to get initial velocity

$$v_0 = 2 \cdot (v_a - v) \ \$$ where

 $$v_0$$ is initial velocity $$v_a$$ is average velocity $$v$$ is velocity

#### Formula to get velocity

$$v = 2 \cdot (v_a - v_0) \ \$$ where

 $$v$$ is velocity $$v_0$$ is initial velocity $$v_a$$ is average velocity