I was wondering if someone could help me with a problem I've been struggling with for a bit. I'm just not quite equipped with the concepts to solve it. Two electrons have a relative speed of 0.9c. Calculate the momentum of each electron in the center-of-mass frame, the frame where they have equal and opposite momenta.(adsbygoogle = window.adsbygoogle || []).push({});

I don't really have an attempt at a solution yet, because I just don't know how to start. If someone could set me in the right direction, it would be greatly appreciated.

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# Homework Help: Relativity speed of electrons and momentum

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