12Nov/090
Physics Engines For Flash
As we all know, there are many Physics Engines for Flash now. Each have their own Pros and Cons, but Actionscript 3.0 provides increase in performance compared to Actionscript2.0. Whatever might be your requirement for Physics in your Flash design, we are going to talk about some useful Physics Engines available now for Flash.
ActionScript Physics Engine (APE)

APE (Actionscript Physics Engine) is a free AS3 open source 2D physics engine for use in Flash and Flex, released under the MIT License. APE is written and maintained by Alec Cove. The latest version available 0.45 alpha. You can get more info on APE at http://www.cove.org/ape/.