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物理学习进入高中阶段,力学和运动学成为整个高中的基础和重点,而牛顿三大运动定律是经典运动力学的理论基础和指导,几乎所有的后期学习到的动能定理、动量定理、动量守恒定律等实际上都是从牛顿三大运动定律中推导出来的,是为简化研究物体运动现象得出的公式及结论。无论是平时做题还是高考,小车运动是高中学生进行运动分析的综合性题类之一,怎样对运动力学活学活用,使解题更加直观、方便和快捷无疑是物理学习追究的一个目标,我们先从一个较简单的典型题目入手分析,探求多种解题方法,获取捷径。
Physical learning into high school, mechanics and kinematics become the foundation and focus of the entire high school, and Newton’s three major laws of movement is the theoretical basis and guidance of classical sports mechanics, almost all of the later learned kinetic energy theorem, momentum law, law of conservation of momentum Are actually deduced from Newton’s three major laws of motion, and are formulas and conclusions that are drawn to simplify the study of the phenomenon of object movement. Whether it is the usual question or college entrance examination, car movement is a comprehensive analysis of high school students to exercise one of the topics, how to apply the kinematic learning, make the problem more intuitive, convenient and fast is undoubtedly a goal of physical learning, We begin with a simpler, typical topic to analyze, explore a variety of problem solving methods, and get shortcuts.