Found a physics library called JBox2d the other day.
It is a Java port of the Box2d physics library.
The demos on the JBox2d site looked pretty interesting so I decided to see if I could get it to run with Pulpcore.
I managed to get a simple demo together fairly quickly.
It is a demo where you are able to drop a domino into a scene. You can also create new floors by right clicking 4 points in a clockwise order. IF you cross the points or drawn them out of order they will render but will not take part in the physics simulation.