The concept of relativistic mass, which increases with velocity, is not compatible with the standard language of relativity theory and impedes the understanding and learning of the theory by beginners. The same difficulty occurs with the term rest mass. To get rid of relativistic mass and rest mass it is appropriate to replace the equation by the true Einstein’s equation , where is the rest energy and is the mass.
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PAPERS| May 01 2009
Mass versus relativistic and rest masses
L. B. Okun; Mass versus relativistic and rest masses. Am. J. Phys. 1 May 2009; 77 (5): 430–431. https://doi.org/10.1119/1.3056168
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