inertiales
Inertial frames of reference are coordinate systems in which an object either remains at rest or moves at a constant velocity unless acted upon by external forces. In Newtonian mechanics, this means Newton's first and second laws take their standard form without fictitious forces. According to Galileo's principle of relativity, the laws of physics are the same in all inertial frames, and no preferred frame exists.
Non-inertial frames are accelerating or rotating relative to an inertial frame and require fictitious forces such
In practice, inertial concepts appear in measurement and navigation. Accelerometers measure proper acceleration, not coordinate acceleration,
Inertia also refers to the resistance of any object to changes in its state of motion, quantified
Relativistic physics posits that all local experiments in any inertial frame yield the same results, and general