Two-Dimensional Motion: Introduction

The strobe photograph of a bouncing ping pong ball shows examples of motion in two dimensions.

What shape do the paths make? Parabolas

The arcs of the ping pong balls are parabolas that represent this "projectile motion." Galileo analyzed projectile motion into its horizontal and vertical components. In this section, you will learn how to manipulate vectors and how to add them. You will analyze projectile motion, and see how to work with relative velocity using vectors.