# Physics Question

**URL:** <https://forums.speedlife.net/t/physics-question/102635>\
**Category:** SON240sx Automotive\
**Created:** [December 22, 2006, 7:23am UTC](https://forums.speedlife.net/t/physics-question/102635 "2006-12-22T07:23:38Z")\
**Posts on this page:** 1\
**Showing post:** 149

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**Author:** ![Solarian](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/solarian/32/5514_2.png) [@Solarian](https://forums.speedlife.net/u/Solarian)\
**Post date:** [December 28, 2006, 1:24am UTC](https://forums.speedlife.net/t/physics-question/102635/149 "2006-12-28T01:24:24Z")

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> [@Lamborghini JALPA](https://forums.speedlife.net/t/lamborghini-jalpa/10706/20):
>
> why will it take off if there is no lift?
> 
> if your going to attempt to answer this don’t start talking about treadmills and shit. just tell me how a plane creating no lift will take off.
> 
> EDIT: i know if you put a big enough jet engine on anything it will fly, but were talking an unmodified airplane.

That’s what your basic mistake is. You’re assuming the plane will not create any lift. I was thinking the same thing until I stopped to think about it. It will, just as much as normally. The treadmill does not affect the normal operation of the airplane in the slightest. Plane ignores treadmill, speeds down treadmill/runway odd contraption, since it doesn’t use shaftwork transmitted to wheels, but thrust, and it generates lift as it normally would, and takes off as it normally would.

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