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求解力学问题,一般要先对系统中的各物体分别进行受力分析,然后列方程计算.但是有些题目采用这种方法非常繁琐,而借用数学却能顺利解决.
To solve the mechanics problem, it is generally necessary to perform force analysis on each object in the system and then calculate the equations. However, some methods use this method is very tedious, and borrow mathematics can be successfully resolved.