This applet simulates projectile motion. To fire the cannon, click or drag in the white area to establish the initial angle and a muzzle velocity for the shot. While you drag, the value for the intial velocity, v(0), and inital angle, theta(0), will be displayed in the black area. Hit Start to fire the cannon. The data of each of your shots will be stored for later reference. To clear all data and all trajectories, hit Reset.