Alright boys, which is it? Justify your response

Alright boys, which is it? Justify your response.

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B. If it gets slammed into the portal, the force will launch it out.

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B, the cubes velocity is zero, however, it's velocity relative to the portal is not zero, so B is the correct answer.

Huh?

portals cant move lel

a), since the portal has momentum and energy and expletes those by clashing onto the platform. The cube itself just doesn't have any of those.

Fags saying "muh conservation of momentum" don't understand this and also ignore the fact that in a spacetime that admits portals momentum is necessarily not conserved (Noether's theorem).

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A. retard

The correct answer is actually A because the portal works relative to the velocity of whatever is passing through it, which is why in Portal when you fall really far into a portal, you get launched farther and higher on the other side. Otherwise it would not be a mechanic used in many of the puzzles. in this graph, the cube is not moving or falling, it has no velocity, and according to Portal and the Havok physics engine, it would just plop, making A correct.

tldr; in the game, how far/high you go out of the other side is relative to how fast you were moving going in, and since the cube does not move, A is correct

You can't base the answer on the physics from the game, because portals can't move in the game

A. The Cube wouldn't gain any momentum, as it's the portal that is moving.

It's obviously A. If you drop a hula hoop over a pole with a box on top the box doesn't fly to outer space.

A. newtons second law you fucking trolls saying B kek

But they can. Look at portal 2.

A. Think of portals of a doorway. Image yourself standing in a hallway with a moving doorway coming towards you while you are standing still. Just because the doorway is moving fast doesn't mean you are. You'll exit the other side of the doorway with the same velocity as you entered it with, which is 0.
If the picture showed the platform holding the cube moving, then it would be B, however its just the doorway moving, not the cube.

a.
if the portal is just a hole a. is what would happen

People forget it's just a hole/door, and then try to say its B. Its silly

in one section when the game engine removes the restriction for narative reasons.

neither because portals are real

Good explanation

oh

Consider an alternative scenario where the overhead portal is stationary and the platform with the cube is rising rapidly to meet it.

Consider another scenario were the cube is dropped at some height into the portal so that it's speed as it passes through is the same as the speed of the platforms in the other two scenarios.


The relative velocity between the weighted storage cube and the portal are the same whether the portal is moving down or the cube is moving up or the cube is dropped into the portal.

All should have the same outcome.

Ok but the problem is, both sides of the hula hoop are moving, so the relative velocity is unchanged on either side. With one side of the portal moving and the other side staying still, the cubes velocity must remain the same through the portal, so it'd have to be B

ok drop a shower curtain with part of the curtain on the ground.
ur stupid bro.

"narative reasons" isn't a thing.
They can be placed on moving objects, it doesn't matter when/why, it is possible in the base game.

>All should have the same outcome.
high school physics says you are wrong.

It could be that he is stupid OR it could be that that's how earthquakes happen.
SO DON'T DO IT. Ok?

>You'll exit the other side of the doorway with the same velocity as you entered it with, which is 0.
The space on the other side of the doorway is "moving fast", too. It's not like hopping through a hulahoop as it passes by and you're back in the same space.

It might work better to think of it like the end of an pipe moving towards you.
You can hop up as the opening of the pipe passes under you, same as the hula hoop, but the walls of the pip are "moving fast" so if you don't hit the ground running to keep up, you're going to faceplant and eat shit.

Why do you suddenly need to be running? Because you were already "moving fast" relative to the space on the other side of the portal.

Replace the box with yourself.
Now imagine an open door zooming right towards you.
You think you would fly off because of the doors speed?

Obviously your momentum is relative to your current frame not your previous one. It's A.

If you stand under the moving portal and watch the box go through it in the portal as it approaches it will appear to have the momentum described in B because the portal moves past the cube. It will actually do A though because that's the displayed reference frame.