Combining two different internet debates
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B. Since there is relative velocity between the orange portal and the target, the momentum is conserved and they will launch.
The only way B is correct is if the people are launched as a pink paste from the forces resulting from the instant acceleration, and if the trolley also at least slows
Launched with a little more entropy.
In simpler terms, speedy thing goes in, speedy thing comes out
Except the people aren't moving so aren't speedy
No momentum goes in, no momentum comes out