[layedgebiamma]

So lets say i have a 32oz battle of water that is only 1/2 full. And i drop it off of a tall enough structure where it would be able to reach terminal velocity and would just happen to stay perfectly upright all the way down. As the bottle is falling the water inside is basically 100% gravity free and looks as if it is just floating around in the bottle.But what happens when the bottle reaches max velocity?

Since there is no wind resistance on the water itself, only the bottle, i'm assuming that the water would simply return to the bottom of the bottle, or would it continue to float about like there was no gravity.


To get an idea of my retarded thought here grab a bottle, fill it 1/2 way and just toss it up a little and watch the water inside.

nuff said

[nannysuetle]

Since there is no wind resistance on the water itself, only the bottle, i'm assuming that the water would simply return to the bottom of the bottle, or would it continue to float about like there was no gravity.

I'm no physx guy, but I don't think the water would return to the bottom. If there's no wind resistance on the bottle then the water and the bottle would fall at the same rate.

[Annewsded]

Well assuming it's a glass bottle, I'd say the mass/weight of the bottle would exceed that of the water, so at terminal velocity the water would be forced to the top of the bottle.

That's my theory, and I'm not sticking to it.

[Wheegiabe]

Seems to me that the water would be in free fall up until such time as the bottle hits terminal velocity. The bottle itself would not be in free fall since atmosphere provides frictional forces. At terminal velocity, the water would not be emcumbered by the frictional forces of the atmosphere and so it would fall to the bottom of the bottle.

Either that or whatever Neeyik says!

[DoctorIrokezov]

I'd say that the water would always be getting pulled to the Earth because the bottle with it's large surface area would be slowing down due to the friction, whereas the water would not.

[Usesdiums]

Of course the airplane will take off!

[gechaheritt]

Is there a cap on it? Lets say there is for convenience; otherwise water might fly out the top due to a low pressure from the bottle falling through the air and that’s a whole different story. The water won’t float around in the bottle. It will be in free fall with the bottle, but in an ideal situation, bottle stays vertical, the water will remain on the bottom. At terminal velocity the water would still be on the bottom.

[topcasinobonua]

I would think the water would stay at the bottom of the bottle. If the bottle were plastic.

Since the bottle would have the affect of the air resistance against it, the water would not. If the velocity of the bottle + water reaches a point where the water no longer has a downward effect on the bottle, due to gravity, then the weight of the bottle would be less and less weight vs the air force against the bottle would cause it to slow down allowing the water's own weight to return it to the bottom.

In other words, the bottle needs the water's weight on it to maintain a rapid descent and without this weight, ie the water was "floating" inside it, it could not maintain a speed great enough to overcome gravity's affect on the water due to the air resistance.

The only time where you would find the water to be able to "float" is when the bottle's weight is enough to overcome the air resistance sufficiently to fall as fast as the water inside it. A wine bottle is perhaps sufficient.

Some people are probably thinking of the zero gravity simulation where the people inside a plane in a freefall would be able to float. The difference between that scenario and the water in a bottle scenario is that the plane does not need the weight of the passengers in order to maintain a speed great enough to allow gravity to pull the people down faster then the plane.

Edit: oh, and terminal velocity is not a specific speed, only the speed in which an object can no longer accelerate on it's own because it can no longer overcome the drag exerted on it.

[StitsVobsaith]

Is there a cap on it? Lets say there is for convenience; otherwise water might fly out the top due to a low pressure from the bottle falling through the air and that’s a whole different story. The water won’t float around in the bottle. It will be in free fall with the bottle, but in an ideal situation, bottle stays vertical, the water will remain on the bottom. At terminal velocity the water would still be on the bottom.

+1

There's no reason for the water to fall at a different speed to the bottle.

nv40Pimp, when you toss the bottle into the air there are different effects at play. For starters, when you throw the bottle, you are applying force to the bottle itself, and the bottle in turn applies force to the water. A different scenario than gravity where an equal force is applied to all parts. When you toss the bottle upwards, it reaches the top of its travel and then changes direction downwards, but the water still has upwards momentum (greater mass, more momentum), thus pushing itself to the top of the bottle.

[Waymninelia]

I'd say that the water would always be getting pulled to the Earth because the bottle with it's large surface area would be slowing down due to the friction, whereas the water would not.

That's the correct answer.

Since the aerodynamic drag is always present, the drag on the bottle would be there since the beginning of the fall. That's why the bottle would be falling and accelerating slower towards the ground than the water inside.

[Faigokilix]

gravity pullls both water + bottle down to earth. Bottle experiences wind/resitance bottle slows down water stays the same and therefore acts as a downward force unto the bottle. yes water stays at bottom.

[huerta]

Of course the airplane will take off!

Exactly what i was thinking , o my [rofl]

[Faigokilix]

Exactly what i was thinking , o my [rofl]

was that the answer you put to your grade 9 physics exam?

[huerta]

was that the answer you put to your grade 9 physics exam?

No,
that answer would be ( ) !

[Lxbsvksl]

Well perhaps I have the wrong idea but...

On the "Vomit Comet" the people inside the airplane float so wouldnt the water float as well? But then the plane is under its own power. So I don't know.[cursing]

[NewYorkDoctorD]

Love some of the replies ... I think ...

Simple reply.
OK, before the bottle is dropped the water is at the bottom.
When the bottle is released, there is no differential force on the water to move it from the bottom of the bottle and it will stay there.
As the bottle starts to fall, there will be a very slight resistance from the air against the bottle that will rapidly increase until the resistance equals the gravitational force on the bottle AND the water inside it. Obviously, the water will still remain at the bottom of the bottle as gravity will be pulling it against the bottle.
At terminal velocity, you still have gravity pulling the water down against the bottle which is falling at a constant rate.

[Faigokilix]

No,
that answer would be ( ) !

i declare a quote fight!




A(2) + B(2) = C(2) YAY!!!!



bed time.. night

[Lyikmcmb]

Quite simple really, the water will always remain at the bottom of the bottle.

When the bottle is dropped, the water will be accelerating at 1G, but the bottle will be accelerating at

[EmpokemyMok]

I say the bottle and water drop at the same speed and the water will remain on the bottom of the bottle all the way down.

If you drop it off a tall building, the bottle and water, will fall at the speed of the bottle. If you toss it up, then watch it come down, you are changing initial momentum and the water may slosh around inside the bottle, but would eventually fall back to the bottom of the bottle.

That seems most logical to me... but I could be a little off.
________
Pregnant Movies

[FateHostera]

Obviously the water will break out of the bottle, accelerating past the speed of light, and raining down liquid death. Everything within a 1 mile area will be perforated like swiss cheese.