Non-inertial reference frame: Difference between revisions

Revision as of 11:09, 25 May 2024

Revision as of 13:09, 25 May 2024

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===Frames and flat spacetime===

{{See|Proper reference frame (flat spacetime)}}

If a region of spacetime is declared to be [[Euclidean space|Euclidean]], and effectively free from obvious gravitational fields, then if an accelerated coordinate system is overlaid onto the same region, it can be said that a ''uniform fictitious field'' exists in the accelerated frame (we reserve the word gravitational for the case in which a mass is involved). An object accelerated to be stationary in the accelerated frame will "feel" the presence of the field, and they will also be able to see environmental matter with inertial states of motion (stars, galaxies, etc.) to be apparently falling "downwards" in the field al g curved {{cleanup|reason= meaninglessness|date=May 2024}} [[trajectory|trajectories]] as if the field is real.

In frame-based descriptions, this supposed field can be made to appear or disappear by switching between "accelerated" and "inertial" coordinate systems.