Quote:
Originally Posted by MediaCenterJunkie
Heres the original quote
"Imagine a 747 is sitting on a conveyor belt, as wide and long as a runway. The conveyor belt is designed to exactly match the speed of the wheels, moving in the opposite direction. Can the plane take off?"
All it says is exactly match the speed of the wheels. It doesn't say anything about velocity or what kind of speed?
I know that sounded reeruned, but IMO the wheels have 2 different speeds.
The speed in which they are traveling in a straight line, forward, connected to the plane, and the speed in which they are spinning.
So which speed are we talking about here?
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As I understand it, the speed of an atom of rubber at the very bottom dead center of the wheel at any given instant is equal to the speed of the surface of the top of the treadmill.