一些学生在解物理题时常常与数学知识脱离.不会用数学知识.他们在解题时,大多数可以根据物理规律建立方程.但当方程建立好后就无法进行推理论证了.数学是物理的基础,它能为学习物理提供良好的分析判断能力、推理能力、想象能力和较强的计算能力.在解决物理问题时.多借助数理方法,可以开阔学生视野,进一步培养学生严谨的解题习惯.下面用比值比较法比较两数的大小和不等式的知识来解决一类力学难题. Some students often disassociate themselves from mathematics when solving physics problems. They don’t use mathematical knowledge. Most of them can solve equations based on physical laws. But when the equations are established, they cannot be inferred. Mathematics is physics. Based on the foundation, it can provide good analytical judgment ability, reasoning ability, imagination ability, and strong calculation ability for learning physics. When solving physical problems, more use of mathematical methods can broaden students’ horizons and further cultivate students’ rigorous problem solving. Habits. The following uses the ratio comparison method to compare the magnitude of two numbers and inequalities to solve a class of mechanical problems.