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21 December, 15:03

You measure its length as it passes. by how many millimeters do you determine the rod has contracted?

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  1. 21 December, 17:53
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    It sounds like a special relativity question but I need more info for a total answer. But remember it's length in the lab frame is

    L•sqrt (1 - (v/c) ^2) where L is the rest length, v is its velocity magnitude and c is the speed of light. Sqrt is the square root (I'm on a phone so I can't see the math equation editor)
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