Relativistic momentum and kinetic energy, and $E=mc^2$

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/121842Based on relativistic velocity addition and the conservation of momentum and energy, I present derivations of the expressions for the relativistic momentum and kinetic energy, and $E=mc^2$.9 pages, 2 Figures, submitted to American Journal of PhysicsClassical PhysicsPhysics EducationRelativistic momentum and kinetic energy, and $E=mc^2$text