文[1]作者“以强烈的使命感”介绍了数理结合的阶段性课题成果,其中展示的第1个案例是对江苏新课标2010版数学教材4第84页一题的探究——图1如图1所示,一根绳穿过两个定滑轮,且两端分别挂有3 N、2 N的重物.现在两个滑轮之间的绳上挂一个重量为m(N)的重物,恰好使得系统处于平衡状态,求正数m的取值范围.通过初步诱导和讨论后,学生2用受力分析和余弦定理解得终步结果“正数m的取值范围是 Article [1] The author ”with a strong sense of mission “ introduced the mathematical results of the phase of the project, which shows the first case of Jiangsu New Curriculum 2010 edition of mathematics textbook 4, page 84, a question of inquiry - - Figure 1 As shown in Figure 1, a rope passes through two fixed pulleys with 3 N, 2 N weights attached to both ends of the pulleys, and the rope between the two pulleys now has a weight of m (N ), Just makes the system in a state of equilibrium, find the range of positive value of m.Through the initial induction and discussion, students 2 with force analysis and cosine theorem to obtain the final result ”positive value of m The range is