Is Yea Forums the dumbest board on Yea Forums?

The portal has momentum which is stopped when it collides with the surface beneath the box
The box has no momentum
Thus A is the correct scenario
If a door flies by such that it passes over you, you are not gaining its momentum
If you fly through a door, you will continue to do so
Same scenario

In Portal 1 there is a section where Glados moves a surface forward, you cannot put a portal on it while in motion.
HOWEVER, you can put a portal on platforms in motion if they arent moving in the same direction I.E the laser part in Portal 2

Take a physics class.

Why would the box move, sweetie?