科里奥利力表达式的一种简单推导方法

A Simple Derivation of the Coriolis Force Expressions

构造了一种简单的模型,在圆周运动的基础上通过简单的相对运动分析,从受力平衡的角度导出了该情景下的科里奥利力.该推导过程可以直观地让学生理解惯性系和非惯性系中对物体进行受力分析的不同方式,以及科氏力为何是一种在非惯性系中才存在的＂等效力＂.本文所构建的情景和证明方式可以让学生加深对于非惯性系中存在的物理现象的理解.

In this paper,a simple model is constructed.Based on the circular motion,the Coriolis force is deduced from the equilibrium of forces by simple relative motion analysis.The deduction process can intuitively make students understand the different ways of stress analysis of inertial and non-inertial systems,and why the Coriolis force is a kind of equivalent force existing in non-inertial system.The scenarios and proofs constructed in this paper allow students to gain a better understanding of the physical phenomena present in non-inertial systems.