有一类运动,它的运动轨迹为抛物线,却不是平抛运动。不少同学对这种运动存在困惑,遇到此类问题分析起来感到难以下手。本文以两个具体问题为例,进行详细分析,以提高同学们处理此类问题的能力。问题1如图1-1所示,某物体自空间O点以水平速度v0抛出,落在地面上的A点,其轨迹为一抛物线。现仿此抛物线制作一个光滑滑道并固定在与OA完全重合的位置上,然后将此物体从O点由静止释放,O There is a class of exercise, its trajectory for the parabola, but not flat throwing exercise. Many students are puzzled by this movement and find it difficult to analyze such problems. In this paper, two specific problems, for example, a detailed analysis to improve students’ ability to deal with such issues. Problem 1 As shown in Figure 1-1, an object is thrown from the point O at horizontal speed v0 and falls on point A on the ground with a parabola. Now imitation of the parabola make a smooth slide and fixed in full coincidence with the OA position, and then the object from the O-point by the static release, O