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在高中物理中常遇到求交点速度的问题.这一问题是学生普遍感到困难的.不少资料上介绍的解法都是利用速度分解的方法或微元法进行求解,微元法较繁琐,速度分解法较难理解,学生往往不知将速度在哪两个方向进行分解.本文给出利用解析法求交点速度的方法,更容易被同学们理解和接受.
In high school physics often encounter the problem of intersection speed.This problem is generally difficult for students.A lot of information on the introduction of the solution are the use of speed decomposition method or the micro element method to solve the micro element method more cumbersome, It is difficult to understand the decomposition method, students often do not know the speed in which two directions to decompose.This paper gives the method of using analytic method to find the intersection point, which is easier for students to understand and accept.