平抛运动是典型的曲线运动,有关平抛运动的题目涉及到的知识点比较多,思路比较灵活,对学生综合分析问题及灵活运用知识的能力要求较高,所以我们应该总结规律,找到有效的解题途径.而有关平抛运动的习题中,特别是与斜面相关的平抛运动的题目,从重视分析两个三角形(速度矢量三角形和位移矢量三角形)入手,往往能快速找到解题的突破口,然后结合平抛运动的特点和规律顺利解决问题. Flat throwing throwing is a typical curvilinear exercise. The topic of flat throwing involves many points of knowledge, more flexible ideas, higher ability of students to analyze problems and apply knowledge flexibly, so we should summarize the law and find effective The solution to the problem.And on the flat throw exercise exercises, especially with the slant-related flat throwing motion problem, from the analysis of two triangles (speed vector triangle and displacement vector triangle) to start, often can quickly find the solution Break through the mouth, and then combine the characteristics and laws of flat throw throw smoothly solve the problem.