Quote:
Originally posted by Mobycat:
Quote:
Originally posted by MattyX:
[b]If, however, you applied an external force to the car, like a big-ass fan, then the car would move over the ice.
You have just added a second power source.

The plane does NOT have a second power source.[/b]
Right, but the plane does not create its movement by pushing against the ice/ground. Put a plane on that same frictionless ice and it will still move whenever it wants to, because it moves by pushing the air, not the surface.