re: Can this 747 take off?

how is this thing 25 pages long now?

If the belt speed matches the wheel speed 1 for 1 but in the opposite direction then the plane would never move in a forward direction, hence not enough airflow across the wings so it can not take off because it is not moving along the x axis

And adding thrust as a forward vector does not count because the wheels only roll forward as a result of that vector. If the forward vector from engine thrust is combined with the equal vector in the opposite direction from the treadmill motion then the net vector is 0