用图象反映物理规律是物理学中常用的方法。图象能够将复杂、抽象的物理规律、过程简明、直观地表达出来,灵活运用图象解题,往往能简化解题过程,起到化繁为简、事半功倍之效。下面通过几个例题来看一下图象在解题中的应用。一、巧用图象例1,A、B、C三辆汽车以相同的速度同时经过某一路标,从此时开始,A车一直做匀速直线运动,B车先加速后减速,C车先减速后加速,它们经过下一个路标时速度又相同,则哪一辆车先经过 Using the image to reflect the laws of physics is a commonly used method in physics. Images can be complex and abstract the laws of physics, the process concise and intuitive expression, flexible use of image problem solving, often can simplify the process of solving problems, play simplification, play a multiplier effect. Below by a few examples to see the image in the problem-solving application. First, the clever use of the image example 1, A, B, C three cars at the same speed through a sign at the same time, from this moment, A car has been doing a uniform linear motion, B car deceleration after the first acceleration, C car first deceleration After accelerating, they pass through the next signpost and have the same speed, which car passes first