Newton’s Second Law is a Relativistic Law

Dr. Nizar Hamdan
E-mail: nhamdan2@xxxxxxxxx

One understands relativistic mechanics as a modification of (correction to)
classical mechanics, while the same correction can be obtained if we go back
to Newton?s Second Law (NSL) and take the change of mass.
The claim that NSL is close to the relativistic law is not quite accurate; it
is more accurate to say, that NSL is applied without the concept of ?mass
change?. Does this mean that applying the concept ?mass change? along with
NSL allows all the relations in relativistic mechanics to be re-derived
without using Einstein?s relativity (SRT)? The present paper[1] answers in
the affirmative.
Newton used 3-d setup in his mechanics and it was wrong because his equations
needed to be changed in 4-d setup (relativistic mechanics).
In the practice of SRT boils down to the requirement that each physical
theory has to satisfy the condition of relativistic invariance. That simply
means that all physical values in a theory must be presented by the
mathematical symbols that have a definite 4-dimensional meaning.
It is well known that any new formalism claiming to be more accurate than the
old must predict the old formalism?s verified results. This paper presented
our attempt to get all the relations in relativistic mechanics by using a
different approach: we changed the scale of the mass, rather than the scale
of space-time as in SRT as well as in 4-dimensional Minkowski space.

In contrast to SRT, which made the NSL a hypothetical kinematics, the present
formalism [1] once again makes the NSL a dynamical law.

References
1. Hamdan, N. 2005. Newton?s Second Law is a Relativistic law without
Einstein?s relativity. Galilean Electrodynamics. 16: 71-74.
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