how to Swing the stack object?

I want to stack the objects like scoop game for iPhone & Tower Bloxx. I want to move that stack to left & right based on accelerometer. I am trying to do it by using chipmunk. I开发者_Go百科 am able to stack but I cant able to swing that stack when it's moving from left to right or vice versa.

If anyone knows it please help me out.

Thanks in advance

You might try asking over at:

http://iphonegamedev.stackexchange.com/