Quote:
Originally posted by XPLORx4:
Quote:
Originally posted by BlueSky:
[b]Well, if the wheel moves, something is causing that, correct? It could be a guy pulling his kid in a Radio Flyer or a soap box derby racer coasting, but if the wheel is moving, it is covering a given distance per rotation. If that distance is negated by a moving surface underneath that moves an equal distance in the opposite direction, the vehicle will not move relative to its surroundings.
So, you're saying that a guy pulling his kid in a radio flyer will be unable to keep pulling the wagon if the wagon suddenly rolls over a conveyor belt?[/b]
No, I'm saying that if the conveyor belt it's on speeds up to match how hard he pulls, the wagon will not move forward, assuming it's on the belt and he isn't.