※ 引述《William8182 (自由羽翼)》之铭言： : [领域]相对论 (题目相关领域) : [来源]极想知道解答的作业题目(很怕教授不检讨><) (课本习题、考古题、参考书...) : [题目] When O' is passing O with speed v,an explosion occurs at point P(x)in : frame O.If the explosion emits a particle with speed u, then it arrives at : O at a later time t=x/u. (a) In frame O, when will O' detect the particle? 在O'观测的量有' 在O没有 设二座标架重合时x=x'=0=t=t' vT = x -uT => T = x/(v + u) : (b)In frame O', when will O' detect the particle? (c) In frame O', where does (b) t' = r(T - v(vT)/c^2) = rT(1/r^2) = (1/r)T : the explosion occur, P'(x'=?) (d)If you subtract from answer (b) the time for (c) x' = r(x - v(0)) = rx : the particle to travel from P'(x') to O' in frame O', you would get the time : t' at which the explosion occurs as observed by O'. Please do so and what : is your answer? (d) u' = -(u + v)/[1 + vu/c^2] delta T' = x'/u' 所以在O'中explosion发生在(1/r)T - x'/u' : 其实题目本来有图,但抱歉我不知道怎麽弄上来>< : 是说照着题目叙述应该没有图部会差太多... : 这题我想超久但始终不太确定解题的逻辑,拜托各位帮忙了m(_ _)m : [瓶颈] (写写自己的想法，方便大家为你解答) : 我在劳伦兹转换这里卡了很久... : 而且事实上我自己也不知道这题要不要用劳伦兹转换 : 或是为什麽要用劳伦兹转换... : 感觉我好像是再被题目而没有真正了解相对论的意涵QQ : 拜托大家了>< --

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