This video will take you through Chapter 4: Physics.
The book can be purchased on Amazon here:
http://www.amazon.com/Cocos2d-iPhone-Game-Development-Cookbook/dp/1849514003
It can also be purchased from the Packt Publishing website here:
http://www.packtpub.com/cocos2d-for-iphone-1-game-development-cookbook/book
