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曲线运动是一种常见的复杂运动,对曲线运动的问题,学生往往感到无从下手.本文如何求解物体做曲线运动的时间例谈一二. 一、利用研究曲线运动的基本方法求时间 研究曲线运动的基本方法--运动的合成与分解,即先将一个复杂的曲线运动,看成物体同时参与几个简单的分运动,研究各个分运动,然后再将描述这些分运动的物理量进行合成,就可以得出复杂曲线运动的规律.这中间有一个很重要的性质即分运动与合运动具有等时性,利用这一性质可以求物体做曲线运动的时间,这种方法是最基本的,适用范围较广.
Curvilinear motion is a common and complex movement. Students often feel that they cannot start with curvilinear motion. This article discusses how to solve curvilinear motions of objects. One, use the basic method of studying curvilinear motion to study the curve motion. The basic method of motion synthesis and decomposition is to first consider a complicated curve motion as an object while participating in several simple sub-movements, study each sub-movement, and then synthesize the physical quantities describing these sub-movements. The law of complex curve motion can be drawn. There is a very important property in the middle that the sub-movement and the joint motion have isochronism. Using this property can find the time for the object to do the curve motion. This method is the most basic one. Wide range.