Afags think it's A

>Afags think it's A
It's obviously B.

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>A moves at 40mph to envelope B and is ejected at C which is moving at 40mph for a net change of 0
This is a door

>A moves at 40mph to envelope B and is ejected at C which is moving at 0mph for a net change of 40
This is a non existent portal anons are sperging about.

The numbers must be equal not counting gravity and wind resistance.

Because boxes and water pressure work the same way.

It's a combination between the two

It literally depends how fast the blue portal is moving.

It's the same in the box scenario - it depends ENTIRELY on how fast the blue portal is moving.

Water interacts with Portal but the cube doesn't
Inb4 b fags use relativity to justify their meme science

Stop making these threads. Portals are not real and the way they are presented in-game cannot be described from a real-world standpoint, thus trying to apply real-world physics is meaningless.
You may as well be debating about magic.

And neither exert force on objects entering them. Stop posting this.

>afag damage control

Momentum is relative and conservation of momentum prove you wrong.

Fixed

Imagine the cube weighs a quadrillion tons. Simply moving the portal over it, no matter how fast, would not create enough energy needed to budge a cube that dense

Where does the energy come from? The momentum from the portal piston does not transfer to the cube

a is more fun and way safer

what is it with these threads the past few days

idk you tell me where the energy comes from. the cube """"""moves""""" as it's coming out the exit portal thats why the question is retarded

In this diagram, its B, because the water is being pushed out by the rest of the water in the container.

In the original problem, the cube won't move due to the fact that it has no momentum.

A fags and B fags should kill themselves for being such annoying cunts.

roll

This is different from the cube because the water would be forced through the portal due to water pressure.

The cube is an enigma because it is moving relative to one half of the portal, and stationary relative to one half of the portal, yet the portal is a single point in space, and there is no other force that would force things happen such as water pressure.

Portals don't have mass so they can't transfer momentum

Momentum is relative.

>Trying to use physics to argue about something that cannot be described by physics

This kills the Afag.

An object at rest, ect. The cube has no inertia.

But it is not at rest relative to the moving portal.

The cube is entering at the speed of the portal.

i see nothing wrong with this

>A
>rocket is both outside of the exit portal and still only partway through the entrance portal
>nothing wrong with this
???????

What I'm saying is you'd need an equal amount of force to push a portal over an object needed to push it out.

In this case, since there isn't enough force to push over a billion ton cube, you literally couldn't push the portal over it. The portal would refuse to go over it

THIS TRAIN HAS NO BRAKES

This has nothing to do with the physics of A or B. The artist just drew one version delayed for no reason.

I know it is from the previous thread but...
I refuse this is not a false flag

You fucking retard, water acts in completely different ways from a solid object.
Fuck you and your shitty bait.

this thread is fucking retarded

Afags BTFO

rolling for a cool one

youtube.com/watch?v=0TZd95BCKMY

daily reminder, this somehow works in the game

If a door frame is hurtling towards you at 100mph, do you fly off at high speed as soon as you pass through it?
You fucking idiot.

The artist drew A-fag "conservation of momentum" in a different context that shows how retarded it is when we're talking about portals that are both moving and non-moving. No delay was added. Just look at it.

Yes, look at it. The rocket is exiting the portal faster than it's entering it.

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It seems to me that people are confusing the issue.

If portals apply no forces to the object, then the fact that it's a portal is Literally irrelevant.

Looking at it another way, from the cube's perspective, the fact that a hole into "another space" is being thrust upon it changes absolutely nothing about the fact that the cube is inert upon its platform, and it would remain so even if the portal's piston was jackhammering on top of it. On the other side, it would seem to appear and disappear very quickly, but never Mysteriously launch itself into the air.

The cube is Not being "thrust" out of the portal. functionally speaking, the universe is being Dropped on top of the cube. It might slide down the slope after depending on friction versus gravity, but whether it does or does not is in no way important to the experiment.

If as somebody proposed there was a second cube being dangled in front of the "exit" portal, than that cube would be displaced by or slightly displace the original cube as if it was being dropped upon it at a speed equal to that of the piston and an angle relative to the portals.
(ergo, A)

In the water example, its the same. the water will begin being affected By gravity the instant it the portal passes over it. If the piston is fast enough, you would again have a situation a lot like A. The only thing determining the how far the water extends beyond the portal is the speed at which the portal passes over it (versus the speed at which the water can then fall to the ground, but in no case should you expect the water to "spray" out from the portal by any distance much exceeding the depth at which the portal comes to "rest". The only complications here are caused by the piston itself (namely, the non-portal surface of the piston coming into contact with the water).

We're talking portals here, user.

B could be more fun if you had a cute butt.

Not analogous. Air is held in place in A in the image you drew because the air is being compressed.
There would be no compressed air with the portals.

>There is a net change because I said there was
There is no evidence to suggest the physics of Portals are any different to traditional doors. What applies the force to the object going through the portal? Fucking magic?
Fuck off.

depends on how deep you put the blue portal you faggot

>If portals apply no forces to the object
Why are we assuming this? Where is the evidence that this is how portals with one half moving and the other half not work?

This is correct. The water problem and rocket problem are straw men that are not related to this problem mechanically at all.

>entrance moves 10000000 miles per second
>exit moves 0 miles per second
HURR DURR ITS A DOOR HULA HOOP CUZ IM FUCKING RETARDED

This is exactly right

Now, you could easily alter the experiment to make B a reality if the piston was fitted to the tank (what I mean is, if there was no portal it would be a closed system where the act of the piston's downward movement compresses the water. In this case, adding a portal would make the water would "spray" out of the "Exit" portal due to pressure, with the maximum "length" of the spray solely determined by the size of the portal relative to the entire piston. (small hole -> big pressure -> big spray). as the size of the portal approaches the entire area of the piston, you would end up with A again.

>still using the door/window/hoop argument

This is the correct

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Get on my level

Das rite

>afags are all autists fascinated by doors and hula hoops
Really gets the ol' noggin' joggin'
>strawman
>afags are this bad at arguing

>What applies the force to the object going through the portal?
The fact that the object moves relative to the exit portal, and the world on the exit portal side, as the entrance portal passes over it.
Why would the object move, then suddenly stop?

>Fucking magic?
Are you aware that portals are not real? We have no idea how a single point in space that is both moving and not moving would work. We basically are talking about magic here.

Right side is heavier right?

>this is what afags actually believe

so

why hasnt anyone bothered to do this test in portal to just end this discussion?

>Einsteins theory of relativity is a poor understanding of physics

Left is heavier. Displaced water is the same, but the left also has the weight of the ping pong ball.

kek

Because in-game, portals can't be placed on moving surfaces.

portal isn't exactly a test bed for realistic physics problems

The strawing of men is unreal here, typical of a bfag

The steel balll has the same surface area as ping pong ball but weights more. Due to archimedes' principle you have the same push on both balls, but the steel ball is moved less, since it takes a stronger force to move it the same distance.
The scale tips over in favor of the right side.

It's already been tested, the cube just gets stuck

OK FUCKER THE CUBE IS RESTING ON THE GROUND WHEN ALL OF A SUDDEN A PORTAL SLAMS DOWN ONTO IT. WHAT CAUSE THE CUBE TO MAGICALLY LEAVE THE FLOOR IT WAS RESTING ON?

>He doesn't know how to roll

Bfags don't actually know anything about relativity, they just parrot it because they saw a few posts that went above their heads and assumed they were right.

Better than the sucking of men, which is what Afags do.

yes they can

>strawmanning with the strawman argument

How is this relevant to portals at all, Bfag?

Sup Forums will argue about everything

The steel ball doesn't move at all. It's not a part of the scale system, it just displaces water.

I am no longer an A fag

im a D fag

classic black

perfect to rip off a girl to see her pale legs through them

Portals go over all of our heads. No one has any idea how they would work because they aren't fucking real.

B makes me rock hard. Fuck.

If anything it not being part of the scale system means it is free to move. It's literally the same way dropping any item in water works after all.

E or F

feet are gross, cover that shit up

Whoever broke valve's canon and introduced a moving platform in portal 2 should be fired.

Also, whatever object tried to exit on the AB side would be disintegrated due to moving faster on one side than on the other.

It is my understanding that the proposed portals are purely a union of two distinct 'planes' in space of a given size.

Is the portal displacing matter, or is it simply a "tunnel" of functionally zero length uniting two points? If the latter, the fact that the entrance moves matters not at all.

The "non-portal" portion of the face of the piston will displace the air (or water), when you move it, but the portal itself will not.

Even if there's no portal momentum fuckery, it has to be B due to water pressure.

>women wearing shoes that don't cover their toecrotch and no stockings
Anything but A

Speed is relative. The man is going 100mph relative to the building. If the man were to jump, he would still be going almost 100mph. His momentum is far too much to stop in time to survive his trip to work.

In relation to the piston, the block is moving fast. In relation to the ground it is resting on, it isn't moving at all. But this isn't about the ground. It's about the piston and the portal.

Fucking Afags man. Jesus.

A or D please

What happens when you put an upside down cup into water?

You could easily recreate this in real life just put 4 pistons on each corner of a block with a hole in the center.

I've never been inside a cup before

With a portal moving up and down on your dick, would you feel pleasure and get hard, or remain limp dicked?

thats b you dumb fuck

i'd say there would be a slight electrical tingle, so b

>If the latter, the fact that the entrance moves matters not at all.
But it does. When the entrance moves over you, you're moving on the side of the exit.
A is using the entrance as a frame of reference (object is stationary, thing goes over it and doesn't impart momentum), while B is using the exit as a frame of reference (object necessarily moving at speed on exit side as entrance passes over it).
There is no way to know which is valid, because portals are not real. All we can do is try to apply physics as we know them to one half of the portal.

>man jumps off moving vehicle
>lands right where he jumped off
>B
good joke

Bfags explain:

What happens when the moving portal stops halfway? Does the box take off to go through the portal anyways? At what point does the box gain all that momentum?