| Subject: Re: [Phys-l] Invariant mass and relativist mass...
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| Please read the Am.J. Physics paper "In Defense of Relativistic Mass".
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It is not a situation of one approach being wrong and the other being
right. In some sense, it is a matter taste. Since the two approaches
when either is carefully applied are essentially equivalent. De
gustibus non est disputandum.
My one sentence version of the difference is as follows:
Do you prefer to write your relativistically correct momentum formula
as:
a) p = gamma*m*v
or
b) p = m*v
If you like (b) you are preferring a relativistic mass approach.
If you like (a) you are preferring an invariant mass approach.
OTOH, there probably is some reason why most current GR and SR (general
relativity and special relativity) practitioners follow approach (a),
and its not simply a matter of faddism.