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Originally Posted by sciguy125
What you're missing is that thrust is a force, not a velocity. Go back to Newton's 2nd Law: F=ma. Velocity is the result of a force acting on a mass. Actually, I think that if thrust was a velocity, it still wouldn't matter.
Let's assume an ideal case: infinite traction between the wheels and the tredmill, 0 friction between the wheels and the axles (through the bearings). In this situation, how does the tredmill stop the plane from moving?
Now let's assume a practical case: some finite but large amount of traction, some very small but non-zero friction in the bearings. What effect does this have on the plane's movement?
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Now I see what your saying. The wheels have no connection with the engine so if they are forced backwards,theres not enough friction reated to act against the power of the engine. I think this should have a poll attatched with it. Be intersting to see where everyone stands
The Debate Rages on