Re: CyBookie - Plane on a Treadmill
:notworthy:
You are right and I change my stance. The plane moves due to forces imparted on the surrounding air and it couldn't depend any less on what the wheels are doing. The real folly here is the distraction of the treadmill..... it could spin at pretty much any speed it wanted and in either direction and it would have little effect. It plays no part other than a supplemental "how much friction" argument which is relatively minute.
I stand corrected.... and that's final. :biglaugh:
Please look at what you are posting and then think a little harder about it.
If the plane moves at 10 mph ground speed (independent of the treadmill) and the treadmill is moving at 10 mph going the opposite direction, the wheels are rotating at 20 mph, but the planes thrust is still much more than able to overcome the very slight friction that exists in the wheel bearings.
If the plane's takeoff speed is 80 mph, then the plane reaches 80 mph and takes off, while the wheels are rotating at 160 mph.
The treadmill is not going to be able to push the plane backwards, no matter how much some of you think it would be able to.
:notworthy:
You are right and I change my stance. The plane moves due to forces imparted on the surrounding air and it couldn't depend any less on what the wheels are doing. The real folly here is the distraction of the treadmill..... it could spin at pretty much any speed it wanted and in either direction and it would have little effect. It plays no part other than a supplemental "how much friction" argument which is relatively minute.
I stand corrected.... and that's final. :biglaugh: