Originally posted by Bill
So this is what happens when you fail basic physics eh?
This is a simple concept, it's not something magical. You weight the top of the tire in such a way that the system enters into equilibrium. The friction between the tire and the ramp prevents it from sliding and the weight is positioned to prevent the tire from rolling either forward or backwards. When the tire it knocked, the weight is shifted to the front, momentum is generated, and the tire begins to roll up the ramp. Friggin' simple. Come on man...
Thank you sir....