Hi guys,

Recently we made a processing app which used some physics.
This is a list of physics libraries which could be used with processing.
Feel free to add others if missing...

- JBox - this is a Java port of a C++ Box library. Integrated with processing: http://www.jbox2d.org/

- Phys2D - another good library. Intended for game development http://www.cokeandcode.com/phys2d/

- JBullet library - for 3d stuff and games. http://jbullet.advel.cz/

- JMokey Engine - physics lib for games. http://www.jmonkeyengine.com/

- Traer physics. http://www.cs.princeton.edu/~traer/physics/

- Physics implementation based on Daniel Shiffman's work:
http://www.shiffman.net/teaching/nature/vectors/

- Sun's vector math package could be used for some basic stuff(vectors, matrix, etc.) http://java.sun.com/javase/technologies/desktop/java3d/forDevelopers/j3dapi/javax/vecmath/package-summary.html

There are pros and cons for each option. It depens on what you are trying to do...

Greetz,
http://morphocode.com/lab/en/