I give up guys. If you dont read the link in my last post and argue from there there is no hope for this discussion.

No, this is not the same as a car wheel. Obviously. <img src="/forums/images/graemlins/rolleyes.gif" alt="" /> What you are failing to see is that anytime and outside force makes more work to move the plane foward, the conveyor matches that force with equal and opposite work. It'll never go anywhere no matter how far your ignorance leads you to believe otherwise. From static rest the plane and conveyor will hardly move.

Again - read the more eloquent link I just posted. I'm done - too much work to do today <img src="/forums/images/graemlins/drunk.gif" alt="" />