运用数学知识解答物理问题的能力,是高考重点考查的能力之一。在中学物理解题中常会碰到解物体的三力平衡问题,这类问题方法很多,但有不少也可以直接通过简单的几何知识就能求解,用起来很方便.下面我们通过几个例子讨论如何利用几何知识解决物体的三力平衡问题. The ability to use mathematics knowledge to solve physical problems is one of the major examination skills of the college entrance examination. In the subject understanding of high school, the three-force balance problem of solving objects is often encountered. There are many ways to solve such problems, but many of them can also be solved directly through simple geometric knowledge. It is convenient to use. Here are some examples. Discuss how to use geometry knowledge to solve the three-force balance problem of objects.