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S Mar 26, 2022 at 16:12 history suggested Billy Istiak CC BY-SA 4.0
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Mar 26, 2022 at 15:47 review Suggested edits
S Mar 26, 2022 at 16:12
Nov 19, 2021 at 12:57 comment added J. Murray @RogerVadim I actually share that perspective, usually. However, when things have been abstracted this far and we are framing mechanics in terms of geodesic motion on pseudo-Riemannian manifolds, I am not sure how to phrase this since aren’t even talking about charts or frames. Perhaps the existence of normal coordinates at each point - but then again, at this level that is already a mathematical consequence of our use of the Levi-Civita connection. My cagey use of “could be understood as” reflects this point, but I’m open to suggestions.
Nov 19, 2021 at 9:07 comment added Roger V. Newton's first law is actually not a special/limiting case of the second law, but rather a statement about the existence of the inertial reference frames, where the other Newton's laws apply. It is the newtonian equivalent of the relativity postulates. Mathematical statements (for zero acceleration) look identical, but physical statements are different.
Nov 19, 2021 at 3:48 vote accept Curious student
Nov 18, 2021 at 23:12 history edited J. Murray CC BY-SA 4.0
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Nov 18, 2021 at 22:39 history answered J. Murray CC BY-SA 4.0