Correct me if I'm wrong, but from my understanding, it's only impossible for an object with mass to accelerate to the speed of light. If something was magically accelerated to above c, it wouldn't break any rules to stay above c.

So what would happen in a collision between a slow object and something moving faster than c?

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[–] 6 points 4 weeks ago

What happens when something traveling at the speed of light (ie: EM radiation) hits something going slower than the speed of light?

The answer there is: it depends, because the issue isn’t relative velocity but energy density and transfer.

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