OK i think that i can explain this but i want everyone to break out an RC car or a vex bot and follow along with my reasoning and finish ready my post before yelling at me,
Heres what happens when snow makes me stay home from physics:
1) The plane will not stay on the conveyor!
The force of the engines will push against the air an accelerate the plane forward off the conveyor at its normal slow begining of takeoff speed the wheels will just be spinning 2x as fast, when it leaves the conveyor the wheels will slow to the same speed as they hit ground and the plane will continue taking off as normal since the forces are plane pushes the air, the air pushes the plane, the belt spins the wheels the wheels spin the belt(not exact but its just the logic, if on the other hand the pilot applied the breaks or something the plane would not take off
2) put your RC car on a treadmill, turn on the treadmill so that the car when going full forward stays in place now strap a rocket engine to the car and light it, the car will go forward because it is being pushed by the rocket(you could even use a non motorized car more like the plane and put the rocket on that and no matter how fast you send the treadmill the car still goes forward)
-The alternate and safer methode is push the car with your hand to represent the interaction with the thrusters and the air
Now read kens posts for background and facts then apply it to mine and i think we have decided it will take off,
Cuog