/sci/ - Science & Math

It has to be B. The trick is this: if the cube starts entering the portal at t0, and the last bit leaves at t1, think about EXACTLY how it behaves between t0..t1. If you visualize this in detail you cannot claim A

Assuming the total amount of cube in the universe stays constant (anything else would be extremely retarded) then it needs to leave the exit portal at the same rate that it enters. This basically forces B, unless you come up with an extremely contrived version for it to stop suddenly as the last atom of cube leaves the portal. gif related is an example of how stupid that would be.

>but muh conservation of energy/momentum
portals don't conserve energy (potential energy is fucked) or momentum (because direction isn't conserved and this turns into magnitude as well in other ref frames)

>buh the cube isn't moving / space is warping / hoops
"space warping" is not observed in any of the games besides AT the portal surface. It's just garbage, it can't explain how air gets displaced (no force??), or even what would happen if you drape a cloth over the exit portal. B works with mostly normal forces and physics. A is just plain retarded.

>>8920412
>10m/s portal around cube would not affect the cube's inertia at all, so the cube would continue sitting there after the portal passes around the cube
Uh, so, if the cube was moving 1km/s it would continue moving 1km/s after the portal passes around the cube at 1m/s?