This animation shows the path of a baseball in two-dimensional projectile motion.
A baseball leaves the ground with both horizontal and vertical components of velocity. It follows a parabolic path and comes to rest on the ground again.
The program recognizes the following commands:
| G | Go. Begins animation. |
| P | Display path. The parabolic path of the baseball is drawn on the screen. Press P again to toggle this feature off. |
| V | Velocity vector. The velocity vector of the baseball is displayed. It points in a direction tangent to the path of the baseball. Its magnitude is greatest at the start and end, and its magnitude is smallest at the top. Press V again to toggle this feature off. |
| C | Velocity components. The horizontal and vertical components of the velocity are displayed. The horizontal component is constant during the entire flight. Press C again to toggle this feature off. |
| S | Step mode. The animation pauses 5 times during the flight, including the pauses at the beginning and the ending of the flight. Press any key to resume animation after each pause. At the end of the flight, press S again to leave step mode. |
| Q | Quit program. |
| ? | Help. These commands are listed. |