Project contents: SiMS, Graphyx
Written in Scala.

Simple Mechanics Simulator (SiMS) is a library for 2D rigid body simulation.
Graphyx is a program for testing and visualizing SiMS.

Both projects are maintained at: https://sourceforge.net/projects/simplemechanics/

SiMS and Graphyx are made available under the MIT License
copyright (c) 2009 Jakob Odersky