Vertical Motionby Fluid (firstname.lastname@example.org)
This gram is a demonstration of the formula d = vt - 5t2 (height = velocity * time - 5time2)
The formula only accounts for the actual, vertical motion. However, I implemented a little horizontal motion because vertical motion alone is boring :p
5 Balls is the limit, it gets slow enough at 5 balls anyway.
So...click the start button to start, it will start out with one ball, and add balls as you see fit. And if you find some reason to click the Stop button, click the Stop button ^_~