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[領域] (題目相關領域) 狹義相對論 [來源] (課本習題、考古題、參考書...) Schutz GR textbook,講狹義相對論的單元,習題: (第二版 Ch2 exercise 19) [註]metric (-+++) MCRF=瞬間隨動靜止坐標系  [題目]                                       → A body is said to be uniformly accelerated if its acceleration four-velocity a → → has constant spatial direction and magnitude,say a ˙a = α^2 ≧ 0 → (a) Show that this implies that a always has the same components in the body's MCRF and these components are what one would call "acceleration" in Galilean terms. [瓶頸] (寫寫自己的想法,方便大家為你解答) 如果是只考慮直線運動,那還OK。 要考慮更一般性的,即傳統初速與傳統初加速度不平行時,目前想不到。 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 101.13.62.197
condensed:我證出來了,謝謝!! 03/11 17:34