Silverlight 1.1 2D Physics
Very cool demo of a Silverlight and a 2D Physics engine...
Silverlight 1.1 2D Physics
Are you tired of physics demos yet? I hope not because I’ve just made another one
It’s using the Managed Bullet Physics library I ported to WPF, tweaked slightly to run with Silverlight 1.1. This might be the world’s first cross-platform physics demo! (umm, except Flade of course, and probably a million others I’m unaware of).

Source: Silverlight 1.1 2D Physics « Chris Cavanagh’s Blog