On March 31 2009 14:28 Mig wrote:
There have been huge huge debates on different forums about if you put an airplane on a conveyor belt and had the airplane moving at the same speed in the opposite direction would the airplane take off. So basically whether a plane whose wheels are traveling like 100 mph or whatever but isant moving anywhere will be able to reach flight. I think this is the jist of it I didnt really get into it but there were tons of physics people arguing over it.
ROFL are u srs? physics discuss this, -_____-
A plane can obviously not fly unless the air under its wings exceeds X speed (depending on its weight and aerodynamics).
The air below the wings of a plane in a conveyor belt will always be ZERO, so the plane will never fly duh.
What's hilarious is that you mock the people discussing it, yet get the answer completely wrong. The original post with the picture didn't really have its place in this thread, your answer does :D
On March 31 2009 14:28 Mig wrote:
There have been huge huge debates on different forums about if you put an airplane on a conveyor belt and had the airplane moving at the same speed in the opposite direction would the airplane take off. So basically whether a plane whose wheels are traveling like 100 mph or whatever but isant moving anywhere will be able to reach flight. I think this is the jist of it I didnt really get into it but there were tons of physics people arguing over it.
I think this question is not asked in the right way. The question originally was a plane (not the wheels) was going 100 mph on a conveyor belt going the other way at the same speed, will it lift?
In this case I think it clear that the plane will move relative to the air, the belt will just add some extra resistance and make the wheels move twice as fast. The plane will take off when reaching the right speed.
There is no such thing as luck. There is only adequate or inadequate preparation to cope with a statistical universe. - Robert A. Heinlein (Time Enough for Love)
I guess it's possible to keep the plane from moving if the accelerating force is constant, but that would pretty soon make the speed of the conveyor go towards infinity. If we are ok with this the plane could be kept standing still and will not take off.
There is no such thing as luck. There is only adequate or inadequate preparation to cope with a statistical universe. - Robert A. Heinlein (Time Enough for Love)
On March 31 2009 14:28 Mig wrote:
There have been huge huge debates on different forums about if you put an airplane on a conveyor belt and had the airplane moving at the same speed in the opposite direction would the airplane take off. So basically whether a plane whose wheels are traveling like 100 mph or whatever but isant moving anywhere will be able to reach flight. I think this is the jist of it I didnt really get into it but there were tons of physics people arguing over it.
ROFL are u srs? physics discuss this, -_____-
A plane can obviously not fly unless the air under its wings exceeds X speed (depending on its weight and aerodynamics).
The air below the wings of a plane in a conveyor belt will always be ZERO, so the plane will never fly duh.
(unless some smartass says that its a front propeller plane that somehow blows air at its own wings at enough speed to lift, which is obviously not possible in normal conditions)
you are wrong Baal.... the plane does not have powered wheels like a car for example.... so it does not matter if the belt is moving or not, the plane will go forward with the same speed, it will lose only a little speed by friction.It will get air under its wings and it will flight
but not this one on this picture, cuz the wings cant fit into the hole of the frame
To end all this silly nonsense, maxousek is correct.
The wheels of the airplane do not drive it forward - the propeller is what creates the forward force and has nothing to do with the ground. Therefore, no matter how fast the wheels spin, the airplane will still get "pulled" through the air by the propeller and take off.
Back on thread :D
Poker is quiet war; it is tidy bloodlust; it is ripping the guts out of the guy next to you and tossing them back in his face with a pair of aces.
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United Kingdom. Apr 01 2009 14:24. Posts 8665
