【摘要】 利用动量平衡原理和动量守恒定律的基本原理，研究了推算汽车碰撞速度的解析计算方法，并提出了两种推算碰撞前汽车动量（碰撞速度）图解的方法。这两种图解方法同理论计算方法相比，具有简单和容易理解的特点。更多还原

【Abstract】 Based on momentum balance and law of mementum conservation, in this paper,algorithm of calculating collision velocity of motor vehicles is studied. And two newgraphic methods are developed to determine the running--in momentum or collision velosity. These graphic methods have the advantages which are simple and clear.更多还原