[Rider]

Originally Posted by fasternyou929

I thought that was the point of the riddle, that the conveyor cannot immobilize the plane since the plane propels itself using air, not the wheels. So if the thrusters are set for 240mph and the treadmill is set for 240mph in the other direction, the plane still moves at 240mph but the wheels spin freely against the conveyor at 480mph. Or no?

Yes