dorsal/arxiv
View SchemaRelativity in Classical Mechanics: Momentum, Energy and the Third Law
| Authors | R Assumpcao |
|---|---|
| Categories | |
| ArXiv ID | physics/0502006 |
| URL | https://arxiv.org/abs/physics/0502006 |
| Journal | ICEE 2005, Gliwice, Poland, 24-29 July, 2005 |
Abstract
Most of the logical objections against the classical laws of motion, as they are usually presented in textbooks, centre on the fact that defining force in terms of mass and acceleration, the first two laws are mere assertions of concepts to be introduced in the theory; conversely, the third law expresses the experimental fact that the ratio of masses is inversely proportional to the ratio of accelerations, but it is known to fail when the interacting bodies are rapidly accelerated or far apart, leading to objections at the research level, particularly when electromagnetic phenomena is present. Following a specification of the coordinate system with respect to which velocities and accelerations are to be measured, relative to a fixed spacetime point, this contribution argues that the limitation of the third law is removed; as a consequence, Energy and Momentum relations are given an alternative formulation, extending their fundamental aspects and terms to the relativistic level. Most important, the presented alternative relations seem to preserve exactly the same form of the concepts as originally used by Newton in the Principia.
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"abstract": "Most of the logical objections against the classical laws of motion, as they\nare usually presented in textbooks, centre on the fact that defining force in\nterms of mass and acceleration, the first two laws are mere assertions of\nconcepts to be introduced in the theory; conversely, the third law expresses\nthe experimental fact that the ratio of masses is inversely proportional to the\nratio of accelerations, but it is known to fail when the interacting bodies are\nrapidly accelerated or far apart, leading to objections at the research level,\nparticularly when electromagnetic phenomena is present. Following a\nspecification of the coordinate system with respect to which velocities and\naccelerations are to be measured, relative to a fixed spacetime point, this\ncontribution argues that the limitation of the third law is removed; as a\nconsequence, Energy and Momentum relations are given an alternative\nformulation, extending their fundamental aspects and terms to the relativistic\nlevel. Most important, the presented alternative relations seem to preserve\nexactly the same form of the concepts as originally used by Newton in the\nPrincipia.",
"arxiv_id": "physics/0502006",
"authors": [
"R Assumpcao"
],
"categories": [
"physics.gen-ph"
],
"journal_ref": "ICEE 2005, Gliwice, Poland, 24-29 July, 2005",
"title": "Relativity in Classical Mechanics: Momentum, Energy and the Third Law",
"url": "https://arxiv.org/abs/physics/0502006"
},
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