Parallels between relativistic and classical dynamics for introductory courses
作者:
Donald E. Fahnline,
期刊:
American Journal of Physics
(AIP Available online 1975)
卷期:
Volume 43,
issue 6
页码: 492-495
ISSN:0002-9505
年代: 1975
DOI:10.1119/1.9775
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
Rewriting the usual equation KE = (m − m0)c2for relativistic kinetic energy in the form KE = [m/m + m0)]mv2helps students recognize its relation to classical kinetic energy; similar parallels between the equations for relativistic one‐dimensional constant force motion and the equations for classical uniformly accelerated motion are equally helpful. In particular, these parallels facilitate the derivation of the relativistic equations for constant force motion and kinetic energy by means of simple algebraic generalizations of proofs often used in teaching their classical analogs to students who have not studied calculus.
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