传送带问题是以真实物理现象为依据的问题,作为力学的基本模型经常出现。既能考查学生受力分析、分析运动过程的能力,又可以锻炼学生综合应用牛顿运动定律、功能关系及能量守恒定律解决综合问题的能力,是近几年高考的热点。因此,这种类型问题具有生命力,也是高考命题专家所关注的命题背景。 Conveyor problems are based on real physical phenomena and often appear as a basic model of mechanics. It is a hotspot of the college entrance examination in recent years that it can not only examine students’ ability to analyze and analyze the process of exercise, but also can exercise students’ ability to apply Newton’s laws of motion, functional relationships, and the law of conservation of energy to solve comprehensive problems. Therefore, this type of problem has vitality and is also the proposition background that the college entrance examination proposition expert focuses on.