If an airplane is flying inside a huge weightless box, why can't it lift the box.? continued?

Question

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Now keep in mind that a plane does not have to push air downward to produce an upward force, that is the nature of lift.

Answer 1

I've thought about this type of question a lot. I would guess that it would depend upon the size of the box. The problem is that with any action, there must be an equal and opposite reaction. So, even lift has a reaction, downward. But, if the reaction is not strong enough to push against the bottom of the box, or does so at a lesser ammount of force than the upward force being generated from lift, this would be because of a greater distance from the point of creation of the lift force, to where the lift, and reaction forces pushed on the box.

So, it might be possible. But, I don't know how to do the calculations, and don't have the technology available to me, to test this, so I am not 100% sure.

Answer 2

Your assumption is totally wrong. All the plane has to do is pull up, hit the top of the box and (trust me!) the box will rise. Remember, you said it was weightless, ergo it has to be massless, and the plane will never feel the impact.....

A plane DOES have to push air downward to fly.

Answer 3

Gosh, ought to it have something to do with the compression of the airstream, inflicting the elevate of the airplane. maybe that compression might could desire to be equivalent on the best and backside of the container, subsequently protecting the container in place...

Answer 4

it DOES need air to produce lift, and there isn't enough air in a "box"