ABSTRACT
The laws of mechanics are completely indifferent to whether a system is truly at rest or is moving with a constant speed in a straight line. This statement is generally referred to as Galilean Relativity. In this sense all such uniformly moving reference frames are equivalent and it makes no sense to select one as a special case and call it absolute rest. As far as mechanics is concerned there is no absolute rest frame. However, mechanics can distinguish between uniform motion and acceleration.
