子弹射木块能量传递问题初探沈秋发（安徽省马鞍山市第九中学，２４３０５１）子弹射木块是研究碰撞问题的常用模型，本文试图从木块获得的动能与入射子弹的动能的关系这一角度，阐述木块获得的动能随子弹动能的变化情况，及木块获得动能最大值的条件．图１问题如图１所示... A Preliminary Study on the Energy Transfer of Bullet Shot Blocks Shen Qiufa (Ninth Middle School, Maanshan City, Anhui Province, China, 243051) The bullet shot is a common model for studying the collision problem. This article attempts to explore the relationship between the kinetic energy obtained from the block and the kinetic energy of the incident shot. Explain the change of the kinetic energy obtained by the block with the kinetic energy of the bullet, and the conditions for the maximum kinetic energy of the block. The problem in Figure 1 is shown in Figure 1.