I would like to know if there''s an open source physics library out there I can get used to. I know a lot about programming, don''t take me wrong, but when it comes to physics modelling... I''ve never done it before. I don''t know what I want. When I''m programming something I know all too well, like a vector class I just made recently, I know what to code and I know the interface I want to be able to use it with. I know physics as well, and I''m studying a great deal of calculus, but I''ve never programmed a physics system-- never even seen the code for one-- so I don''t know how to code a good interface for it that I can use in demos. Therefore, I would appreciate someone pointing me to a physics library and showing me a few pointers on the subject.

Just create a base object class and implement a function that tests for collisions, acceleration, etc. Then call that function every frame. Also after testing for the effects you''ll want to implement functions that are called if the test returns true.