Apart from the ones found on gamedev of course.I want a simple physics engine tutorial.Thanks.

Look for Open Dynamics Engine (ODE) in a web search engine. I believe Russell has some tutorials there on how to use ODE, which is his physics engine. You might also find some stuff at www.gamasutra.com (free registration). You''ll definitely find stuff there if you want to implement a physics engine. Chris Hecker also has some articles that can help with implementation at his website www.d6.com. Same goes for Jeff Lander at www.darwin3d.com.

Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.