1 upvotes, 1 direct replies (showing 1)
View submission: Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
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Comment by mfb- at 07/12/2023 at 08:24 UTC
4 upvotes, 0 direct replies
Would a person in one train be able to see the other train?
Sure. The light will approach them at the speed of light. No matter at what distance and when it starts, it's reaching them.
You can't catch up with light beams, but the trains are not moving at the speed of light.