Great page covering many physics topics from cloth simulation to inverse kinematics:
http://freespace.virgin.net/hugo.elias/models/m_main.htm
While not directly Maya related, much of the pseudo-code supplied is easily transferrable to Python.
http://freespace.virgin.net/hugo.elias/models/m_main.htm
While not directly Maya related, much of the pseudo-code supplied is easily transferrable to Python.