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Feb25-09, 07:43 PM
P: 360
So, if a person jumping into a black hole would seem to stop moving because he is moving so fast than the same would hold true of a particle moving really fast right?

So what you are saying is that if we shoot a particle out at 0.99c then we actually observe it moving slower than that? So then how do we know we really shot it out at 0.99c rather than just at a slower speed?