In this class activity we will solve for the motion of an object in more than one dimension. Because motion along each axis is independent, we treat this problem as two separate numerical calculations in 1 dimension, one in the x direction and one in the y direction. For this problem we assume that acceleration only occurs along the y axis perpendicular to the earth's surface.
In this activity, students will learn how to employ the Euler method to study the two dimensional motion of a kicked ball. This is a problem that they have studies using pen and paper. Here they will see how the same problem can be approached numerically and can eventually be used to study more complex problems which pen and paper would not be convenient.

Key words: Projectile problem, 2-D motion, Euler method