贵刊2009年第12期P36孟俊杰老师的《一道子弹打木块习题的错解分析》一文对错解分析很透彻,并且给出了多种正解方法,看后很受启发,不过此文也还有值得进一步商讨的地方.图1是原文P37左下的图2,此图应该说是有问题,很多其它参考资料关于此问题也有类似错误,现分析如下. P36 Meng Junjie teacher “a bullet hit wooden block misunderstanding analysis,” a text on the wrong solution is very thorough, and gives a variety of positive solutions, after looking very inspired, but this article There are also places worth further discussion. Figure 1 is the bottom left of the original P37 Figure 2, this figure should be said that there are problems, many other references on this issue have similar errors, are analyzed as follows.