物理图像是一种特殊形象的数学语言和工具,运用数和形的巧妙结合恰当地反映和表达各种现象和物理过程。物理图像不仅可以使抽象的概念形象、清晰,而且可以使物理量之间的函数关系明朗化,用图像法解题不但直观、迅速,还可以避免复杂的运算。下面具体谈一下图像法在动量守恒中的应用。例1水平速度为v_0,质量为m的子弹击中并穿过放在光滑水平地面上的木块,若木块对子弹的阻 Physical image is a special image of the mathematical language and tools, using the combination of numbers and shapes properly reflect and express a variety of phenomena and physical processes. The physical image can not only abstract the conceptual image and make it clear, but also clarify the functional relationship between the physical quantities. It is not only intuitive and rapid to solve the problem by the image method, but also can avoid complicated operations. The following specific talk about the image law in the conservation of momentum. Example 1 A bullet with a horizontal speed of v_0 and a mass of m hits and passes through a block of wood placed on a smooth, level ground,