论文部分内容阅读
牛顿运动定律提供了一种解决物理问题的基本方法,即动力学的研究方法,这也是解决力学问题的基本方法之一.解力学类综合题有两大类方法:一是力和运动的方法,即用牛顿运动定律与运动学公式联立求解;二是动量和能量的方法,即用动量守恒定律(如果是系统的合外力为0,优先使用)和动量定理;往往仅用动量来处理是不够的,还必须加入动能定理或能量守恒定律等联立求解,相反亦然.动力学的方法基本只能处
Newton’s law of motion provides a basic method to solve physical problems, that is, dynamic research methods, which is also one of the basic methods to solve mechanics problems.College mechanics class synthesis has two broad categories of methods: First, the method of force and exercise , That is, Newton’s law of motion and kinematics formula jointly solve the second momentum and energy method, that is, the law of conservation of momentum (if the system combined force is 0, priority) and momentum theorem; often only momentum Is not enough, you must also join the kinetic energy theorem or the law of conservation of energy and other simultaneous solution, vice versa.Kinetic methods can only be at the basic