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安徽省2014年高考压轴题是一道有特点的高考题.它将弹性碰撞、摩擦力等力学形式运用于物块在凹槽内的相对运动,使该题情境丰富又内容合理,该题存在多种解法.笔者在深入分析题目的条件和情境后,指出本题的实质是物块相对于凹槽做匀减速运动,因而可利用相对运动速解此题.
Anhui Province in 2014 college entrance examination pressure axis problem is a characteristic college entrance examination questions.It will be elastic collision, friction and other mechanical forms used in the relative movement of the block in the groove, so that the topic is rich and content is reasonable, the problem exists Kinds of solutions.After analyzing the conditions and situations of the subject deeply, the author points out that the essence of this problem is that the blocks are evenly decelerated with respect to the grooves, so that relative motion can be used to solve the problem.