Ragebait answers only
Stop stealing all my upvotes
Perfectly understood the assignment, 10/10, no notes.
There’d be no cube but yes
In the first moment of exit, it might look like this though
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You can’t place a portal on a moving surface in either game, so neither.
So the cube is just smashed?
It’s a practical answer which is slightly upsetting because I wanted more discourse.
Skill issue
This was answered decades ago
In that situation both portals (the inside and the outside window frame) have equal, but opposite velocities and therefore cancel out any momentum from the person.
When dealing with OP’s scenario, only one portal is moving.
Portals don’t stay on moving platforms.
But if they did, it would be A as the cube itself has no momentum.
WHAT DID YOU NOT UNDERSTAND ABOUT RAGEBAIT. ANSWERS. ONLY.
… Uh
u mad?
So really I saved this comment and you’re all welcome.
Except that one time when you use portals to cut the neurotoxin pipes.
Yeah, but those are moving from side to side. To my recollection, you never see a portal in a wall that’s moving in a direction that’s perpendicular to the plane it’s in.
The speed of one thing is the same speed of the other if you change the reference point. So the cube has momentum but the moving platform does not. It’s more about having a velocity in respect to the portal it’s going in or coming out of or an average of both. Like when you jump into a portal, you come out faster on the other side. Now what if that out portal was traveling at the same rate? Would you be traveling just outside the portal or double speed (in relation to the ground and static objects in the same room)?
Option B. Portals already break a couple of laws of physics and can reverse entropy, but I like to think you should look at the speed of an object relative to the portal.
Speedy thing go in, speedy thing come out. Clearly explained in game.
Ragebait answers only
I’m giving so many people Fs on this assignment because you failed to read all the instructions.
The correct answer is B due to the graphical conservation of speed lines.
I did it deliberately.
Lemmy reads more than most but people aren’t good at reading
The object going into the portal has no momentum so it would be A.
Speedy thing did not go in
The question is: Is it the velocity of the object relative to the portal that matters or the velocity of the object in some other frame of reference?
In the later case, we must ask how the portals at different angles don’t send objects flying off at the speed of the milkyway’s travel through the universe.
The answer that requires the least assumptions and justifications is B.
Exactly. What would that ‘other frame of reference’ be and how would the portal know about it?
If we’re only supposed to do ragebait answers, then anyone who passed 3rd grade science would be able to tell you the answer is obviously B
If you actually played the game, and paid attention in physics class in highschool, then you would know the answer is clearly A, and everyone who says it is B really needed the simplified explanation from GLaDOS to understand how to play the game.
I’ve played the game, you maintain speed whether you jump or fly in using your jet pack, no idea who this GlaDOS character is or what that funky cube is though. Abyss is the best map.
It went through the portal at speed, so it should exit the portal at speed. That’s my take.
If we could test it, I think it would be helpful to put portals on either side of a very light, plastic disk in an attempt to see if it works like a hula hoop or not. If we drop the hoop over the cube, would the hoop:
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Just land on top of the cube because the hoop has far less energy than a much more massive cube traveling at the same velocity?
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Drop around the cube, such that the cube is just sitting on top of the exit portal?
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Launch the cube into the air with an initial velocity equal to that of the hoop when the cube entered the portal? If so, where does all the additional energy required to accelerate the cube come from if the hoop’s momentum is far less than the cube’s momentum at the same velocity?
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Neither, I’ve already gleefully incinerated that fucking cube before it got to this point.
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A
In this example, the object wasn’t moving. It has no momentum to continue moving. Instead, the world around it moved. So A
A, momentum is in the portal, not the cube
