传送带模型集运动学、动力学、功能关系等力学知识于一体,是物理知识应用于实际中的典型,是高考考查的热点,不论命题的落脚点是物体的运动还是摩擦生热,其中心点和难点都是物体在传送带上的相对位移.求解相对位移若能灵活使用速度图象解析,可突破难解、避免错解、实现快解.一、水平传送带模型的速度图象和摩擦热 Conveyor belt model kinematics, dynamics, functional relationships and other mechanical knowledge in one, is the physical knowledge of the typical application of the actual college entrance examination test hotspot, whether the proposition of the object is the movement or friction heat, the center point And difficulties are the relative displacement of the object on the conveyor To solve the relative displacement If the flexibility to use the speed of image analysis can break through the puzzle to avoid the wrong solution to achieve fast solution First, the horizontal image of the speed of the belt model and the friction heat