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我们只要稍微细致的观察与分析即可发现高考题无论是从模型还是解题方法上都会从平时的训练题上找到熟悉的影子.笔者就这方面问题简单的总结了一下,试图让学生面对高考试题时能够更加从容地进行分析与解决.原创1(2004年全国Ⅰ卷第25题)有一个小圆盘静止在平铺在桌面上的桌布上,且位于方桌的中间位置.桌布的一边和方桌的AB边重合,如图1所示.已知盘与桌布间的动摩擦因数为μ1,盘与桌面间的动摩擦因数为μ2.现在将桌布突然以恒
As long as we meticulous observation and analysis can be found in the college entrance examination questions either from the model or problem-solving methods will find the familiar shadow from the usual training questions.The author briefly summarizes the problem in this area, trying to make students face Entrance exam questions can be more calmly analyzed and resolved.Original 1 (2004 I roll 25) has a small disc resting on the tablecloth tile on the desktop, and is located in the middle of the square table. And AB side of the square table coincide, as shown in Figure 1. Known disk and tablecloth dynamic friction factor μ1, dynamic friction factor between the disk and the desktop μ2. Now the tablecloth suddenly constant