Quote Originally Posted by Tishimself View Post
The fallacy of your logic (as I see it at least), is that you're forgetting something. The wheels of the airplane are connected to the plane, and friction exists between the runway (conveyor belt) and the wheels.

For the plane to take off, it has to reach a certain airspeed - the speed at which the air passing over the wing is enough to create lift. In order for the plane, which is on the ground, to reach a forward speed, its wheels would need to be travelling in a net forward direction. In order for this to happen, their speed would have to be GREATER than that of the belt running beneath them.

If, as the above indicates, the speeds are ALWAYS equal, then the plane will not move.
DO you agree with the framework OR do you want to pick a speed?