Momentum in Special Relativity | Four-Momentum

In this video, we will explain momentum in special relativity.

In classical mechanics, momentum is defined as mass times velocity. In special relativity, we use a very similar equation, mass times four-velocity. Since mass does not change after a Lorentz transformation, p^mu will transform in the same way as u^mu does, which makes p^mu a four-vector.

Contents:
00:00 Definition
01:09 Square of Momentum
01:36 Zero-Component
02:45 Appendix

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[jasperberends]

"p(mu) and p(mu)" proceeds to write two different p(mu)'s