N. David Mermin
Abstract
The relativistic addition law for parallel velocities is derived as an immediate consequence of the constancy of the velocity of light, without making use of Lorentz transformations, and without appealing to the phenomena of length contraction, time dilation, or the relativity of simultaneity.
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The relativistic addition law for parallel velocities is derived as an immediate consequence of the constancy of the velocity of light, without making use of Lorentz transformations, and without appealing to the phenomena of length contraction, time dilation, or the relativity of simultaneity.
Key concepts: Time dilation, Length contraction, Physics, Special relativity, One-way speed of light, Lorentz transformation, Classical mechanics, Theory of relativity