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內容講解:正向彈性碰撞

此單元我們講解如何把之前所學的多質點系統動力現象遵守的牛頓運動定律(動量守恆定律)以及功能定理(力學能守恆)綜合應用於正向的彈性碰撞.

基本概念在於(1)系統不受外力時,系統的總動量守恆   (2)獨立系統 外力不作功,內力為保守力時力學能守恆.
由此正向彈性碰撞同時遵守總動量守恆與力學能守恆),整理可歸納出碰撞前後的特性.
 

 

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