《中学物理》杂志2011年第1期的《一类极值问题的简捷解法》一文中,陈运权老师在对“用一个力拉物体使其运动,问该力朝什么方向可取最小值问题”的研究中,给出了常规的三角函数求极值的方法后,运用了简捷的摩擦角图解法对此类问题进行了精彩的变式探讨,文中有一道变式例题即为2013年山东高考物理第22题,继贵刊2012年4月第3期《解决动态平衡问题的物理思维方法——数学转化思想》命中2012年高考理综新课标全国卷第16题的动态平衡问题后再次命中高考原题,体 “High School Physics” magazine in 2011 a “simple solution to a class of extreme problems,” a text, the teacher Chen Yunquan “to pull the object with a force to exercise, ask the force in what direction is desirable minimum problem In the study, given the method of finding the extremum of the conventional trigonometric function, a simple variant of the friction angle diagram was used to explore the wonderful variation of this kind of problem. In this paper, a variant example is the case of Shandong College Entrance Examination Physics 22 questions, following your magazine April 2012 No. 3 ”to solve the problem of dynamic balance of physical thinking - Mathematical Thinking" in 2012 College Entrance Examination New Curriculum Standard National Volume 16 problem of dynamic balance Again hit the original title, body