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範例:行星系統的力學能守恆與動量守恆

如右圖，質量分別為3m、m的A、B兩靜止物體，相距為d，因萬有引力而相向運動，當A、B相距 d/4時，A、B的相對速率為多少？


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Posted in 重力位能的一般式.

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By admin – 2009 年 04 月 28 日

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