The nature of geoneral collision is expounded profoundly and audiovisually with the method of geometry, from which some important information ungrained from analytic method is gotten easily.

• 以简单直观的几何方法深刻地阐明了一大类碰撞问题的共性和实质；从另一个侧面反映了质心系和实验室坐标系之间的关系；得到了许多解析方法不易获得的重要信息.