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TopicWhat would happen if two cars collided at the speed of light?
MwarriorHiei
09/27/17 1:54:10 PM
#6:


Laserion posted...
At what speed is each going with reference to the other? For an outside observer, car A is going right at |v|=c, and car B is going left at |v|=c. But from car A's frame of reference, the car B is approaching at |v|=2c, and vice versa.

the speed of light is the same in all reference frames.
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