[ALIBI]

The plane can take off. The thrust is not relative to the speed of the wheels turning. The plane will move forward regardless of how fast its wheels are turning, the thrust is not going into the wheels. The question is basically flawed in making you think that because the conveyor belt is moving at the same speed as the wheels that the conveyor could hold back the thrust/forward movement of the plane. To believe that the plane can not take off, you would also have to believe that if the conveyor belt was moving the wheels at the same speed the plane needs for take off, the plane would fly without its engine on. In order for the conveyor belt to stay under the plane once the thrust is enough for take off, the conveyor had better be moving pretty fast in relation to the ground if it wants to stay underneath the plane. The conveyor can not put enough force into free spining wheels to hold back the thrust of the planes engine.

EDIT: The plane does not move forward and take off because the wheels are turning, the wheels turn because the plane is moving and the wheels turning do not make the plane take off. The question is flawed.