What Is the Equation for Velocity?

The equation for velocity is displacement divided by time. The equations for speed and velocity are similar, but velocity must always have direction, whereas speed does not.

While speed is a measure of how fast something is moving, velocity is a measure of the rate an object changes its position. Distance is a measure of how far something is, while displacement is a measure of the shortest distance between an object's start point and its end point. For example, a runner who ran 400 meters around a track travelled a distance of 400 meters. However, he has a displacement of 0 because he ended up at the same place he started.