Top down ball physics

Hi,

I am trying to make top down ball (bowling ) game. According to design, ball will go from bottom down to top of the screen where bowling pin are. For this I need information about the ball how i will control the ball and can give the appropriate physics to the ball just like speed with force , gravity and rotation with collision with some bowling pin.

There is a ball tutorial is available on TDN. But problem is that tutorial is based on side view. But I need top down bottom to top ball rolling algorithm. If anybody has an idea about this or has any tutorial , pls. help us.



thnx.