Imagine a 747 is sitting on a conveyor belt, as wide and long as a runway...

Imagine a 747 is sitting on a conveyor belt, as wide and long as a runway. The conveyor belt is designed to exactly match the speed of the wheels, moving in the opposite direction. The wheels are frictionless. Can the plane take off?

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why wouldnt?

No, liftoff only occurs because of air movement over the wings, there would be no air movement and thus no liftoff

Yes because wheels are the only thing that determine whether a plane can fly or not

yes because turbins move air anyway

Yes, because the thrust from the plane is not coming from the wheels, it's coming from the engines. Assuming no friction the wheels and converyor will accelerate infinitely as the plane moves forward and accelerates to take-off speed.

yes, the plane is moved by the thrust of its engines and not the wheels, so a conveyor moving at the same speed as the plane with no friction (i assume this means no bearing friction, not no grip at all), will just force the wheels to spin twice their normal speed while the plane takes off at normal speed.

No, It's going to crash into the beams supporting the top half of the treadmill. The wings are too long.

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No. Because it needs air under the wings. That builds up from it moving forward. You don't test wind resistance by just having something run in place.

Sure, if it has 200+ km/h headwind

Yeah, wind...

>sciencefag

Without the wind sheering off the wings due to forward momentum? Are you people actually retarded?

No.
Belt and wheels have the same speed.
So the plane does not move, stays where it is.
You can now leave out belt and wheels from the equation.
Plane does not lift because no wind flowing under the wings while it's standing there.

didnt Mythbusters disprove this already?

no because as soon as it leaves the ground it'll hit the frame of the treadmill

the jet fuel will melt it

Not as long as the airspeed is 0, since lift is a funktion of airspeed.
If the plane however manages to accellerate relative to the air it would take off.

Is this what inbreeding does?

>planes use wheels to fly

stop posting

Kinda pointless to even have it on a conveyor belt. The belt wont even slow it down because the force comes from the turbines on the wings, not the wheels.

nigger stop trying to get us to do your physics homework you've been posting this thread for a week

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Yep, they made a giant conveyor belt and everything. They did it with a small prop plane, not a jet.

youtube.com/watch?v=YORCk1BN7QY

Yes
Mythbusters Prooved it

Yes. The 747 doesnt apply power to its wheels.
It would have trouble landing safely however.

Airspeed is not groundspeed, OP.

This is correct. a planes forward motion is driven by the engines. and it's take off speed is determined by how fast the wings are moving through the air. What's happening with the wheels and runway are irrelevant as long as they don't hinder the planes ability to move forward.

This is the anser

No, The air flow over the wing creates lift.
The plane would be able to take of without any forward momentum (relative to the ground) if the wind speed was fast enough.

Wooosh

All of you are stupid cucks if the treadmill moves at the rate of wheels hold the brakes and slam the throttle just drag the wheels