Quote:
Originally Posted by Mrvile /img/forum/go_quote.gif
LMAO @ this thread continuing...
How does this all relate to the treadmill question? When the plane's engines start pushing it forward, the treadmill starts to move back. However, since the plane's engines aren't affected by the movement of the treadmill at all, the plane is still able to be propelled forward by the thrust emitted from the engines. It starts to move forward. It moves faster and faster. Finally, it moves forward fast enough so that air is moving over the wings and SHAZAM! the plane takes off.
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You might be LYAO, but I'm going mad I tell you
Well after this, I'm going to sign off for the night.
This is an impossible answer and I can see 3 answers: NO, the plane doesn't take off assuming we're just talking about speed of airplane, conveyor belt, and gravity: YES, while the airplane doesn't move forward due to inertia, there's going to be enough lift on the wings with enough drag and lift from the propellers: YES, the airplane will move forward because there are more real life co-efficients that would give the plane an inertia advantage.
In your examples with airplanes taxing off with runways, an the airplane is not on a magic treadmill....obviously the wheels are going to move with the plane and its going to have forward inertia. It would even have forward inertia on this magic treadmill if it had more speed then the treadmill.
To say from the other viewpoint, we are saying that the
plane is effected by the treadmill. Assuming the belt is some fancy thing that can keep up with the engine, as long as there is a forward acceleration from the engines, there is a backward acceleration from the treadmill. The wheels are going in the opposite direction of the airplane and are connected by axles. Gravity is pulling down on everything, so the plane is staying seated as the engines are wanting to go one way and the wheels are wanting to go the other. That is one model....now people will dream up other models, and this thread will go on for 50 pages.
But I'm done!!!!
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ok, at least for tonight [/size]