The simulation usesBox2D [http://box2d.org/] as a physic engine.
The simulation uses[Box2D ](http://box2d.org/) as a physic engine.
Information about its algorithms can be found on the page above or [Here (pt1)](https://ftp.tu-ilmenau.de/index.php?id=c864408a51d84cf9235d0d095f9de8bf).