传送带是高中物理重要的力学模型,因牵涉到物体间的相对运动,使空间关系成了解题中的难点和障碍.在一些传送带问题中,若能科学灵活地利用速度图象,不仅能快速突破空间关系的难点,还能因此理清物、带间的相对位移、相对路程,进而解决相关的摩擦生热等问题.一、传送带逆向传动的情景 Conveyor belt is a high school physics important mechanical model, because involves the relative movement between the objects, makes the spatial relations become the difficult problem and the obstacle in the solution.In some conveyor belt problems, if can use the velocity image scientifically and flexibly, not only can quickly Break through the difficulties of spatial relations, but also clear things, with the relative displacement between bands, the relative distance, thus solving the friction and heat and other issues related to the first, the reverse belt transmission scenarios