动能定理是高中物理的一个重要定理,应用广泛,既适用于直线运动,也适用于曲线运动;既适用于恒力做功,也适用于变力做功;既适用于单一过程,也适用于多过程;既独立使用解决物理问题,也常与其他知识点相综合.因此同学们应灵活地运用动能定理解决物理问题,下面我们通过例题分析动能定理的应 Kinetic energy theorem is an important theorem of physics in high school. It has a wide range of applications and is suitable for both linear motion and curvilinear motion. It is applicable to both constant force and variable force. It is suitable for both single-process and multi-process ; Both to solve the physical problems alone, but also often combined with other knowledge points. Therefore, students should be flexible use of kinetic energy theorem to solve physical problems, the following example we analyze kinetic energy should be