论文部分内容阅读
贵刊2015年第1期“对两个牵引模型的辨析”一文中,通过对速度定义v=Δx/Δt微元法的深刻剖析求解,说理很透彻,笔者教学时也曾采用此法,从学生接受程度来看,还是有困难的,尤其针对复杂模型此办法有一定难度.下面谈谈笔者在教学时用功率求解速度关联问题的方法.模型1:如图1所示,滑块A置于光滑水平桌面上,细线一头与滑块相连接,连接点为B,另一
In your article, Issue 1, 2015, “Differentiating and Analyzing Two Towing Models”, the thesis is very thorough through the profound analysis of the definition of the velocity v = Δx / Δt microelement. This method has also been adopted by the author in teaching , From the student acceptance point of view, there are still difficulties, especially for complex models of this approach has some difficulties .Then talk about the author in teaching with power to solve the problem of speed-related issues. Model 1: As shown in Figure 1, the slider A is placed on a smooth horizontal desktop, a thin line connected with the slider, the connection point is B, the other