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Hey Phil... I think I understand where your argument is based from.

After a LONG LONG discussion with a coworker..... He intrepreted the question AS

IF the plane wheel speed was matched by the conveyer in opposite direction, **BUT NOT TIED to the speed of the plane**, then there would be 0 movement, and I agree with that, BUT thats not the question that was given to us.

IN THAT circumstance, the treadmill would be able to ACT on the plane by going in reverse @ a very great speed (enough to increase the friction through the wheels) to counteract the planes engine force.

Does this help any??


Yeah. That may be where I was coming from. I am convinced you guys are right. I think I was thinking of something less than zero friction. I cannot wrap my noodle around the concept of zero friction apparently. <img src="/forums/images/graemlins/shiner.gif" alt="" />

I also realize now that even in my prior understanding- the treadmill would have to move alot faster than ground speed to keep it at zero.

Call me slow - You all win. <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" />

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