This little detail would have helped. I was picturing a plane moving forward on a converyer belt, that is, the planes wheels are not moving but the belt is, therefore the plane is moving forward but not from it's own thrust. then having the converyer belt end at some point. Not the conveyer belt moving with the plane staying stationary to the air. In that case, no, it wouldn't take off.

Ambiguity, the devils vollyball court.