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解平抛运动问题的一般方法是利用运动的合成和分解,但不能硬搬原理,机械地套公式,要灵活运用. 1.利用分运动的特点例1 在研究平抛运动的实验中,用一张印有小方格的纸记录平抛小球的运动轨迹,小方格的边长L=1.25cm.若小球在平图1
The general method for solving the problem of flattening and throwing motion is to use the synthesis and decomposition of motion, but it can not be hard to move the principle, and mechanical formulas should be used flexibly. 1. The characteristics of the use of partial motions Example 1 In the experiment of studying flat throw motion, use A track with a small checkered paper records the trajectory of the flat throw ball. The side length of the small square is L = 1.25cm. If the ball is in the flat view 1