Seems so simple to me that I can't believe there is this much debate going on.

My father's Cessna has a set of skis and floats as well as wheels. The floats and skis don't rotate whatsoever but the plane will still take off. If it was sitting on a convevor belt travelling the same speed as the skis/floats then it would be that much easier for the plane to take off as the skis/floats wouldn't have any drag (other then air resistance) to hold back the plane.

In this situation I see it as being basically the same as locking up the brakes on the wheels. If the conveyor belt is to match the speed of the wheels then the wheels do not need to be rotating. The belt will simply speed up at the same rate as the plane does with it's thrust provided by the prop.

I think the question is tricking people to some degree (duh!). The runway is moving in the opposite direction of rotation compared to the wheels... however, the wheels would not actually be rotating but will still gain forward speed.

Fun question!

Rene