本刊2005年第1期竞赛园地中发表了《一道力学题答案的探究》一文,尽管该文提供的解法比原书给出的答案更完整,但笔者认为文章在对题中两种可能的情形讨论时,采用纯代数解法,读者看起来还是很费劲,物理意义不够清晰.本人在实验班供学生自由讨论该题时,有学生采用了用圆域矢量图 In this issue of the first issue of the journal, the article “An Inquiry into the Answers to a Mechanics Question” was published in the competition field. Although the solution provided by this article is more complete than the answer given in the original book, the author believes that the article is two possible When the situation was discussed, with pure algebraic solutions, the readers still looked very strenuous. The physical meaning was not clear enough. When I was in the experimental class for students to discuss the topic freely, some students adopted the circle vector.