平抛运动实质是水平方向上的匀速直线运动和竖直方向上的自由落体运动的合运动.现实生活中的平抛运动问题有很多,现选析几例,以飨读者.1利用平抛运动知识和分析图片数据图1例1某同学在某砖墙前的高处水平抛出一石子在空中的照片如图1所示.从照片可看出石子恰好垂直打在一倾角为 Ping throwing throwing motion in essence is the horizontal direction of the uniform linear motion and the vertical direction of the free-fall motion combined movement .There are many flat throwing motion in real life, is now selected a few examples to readers .1 use flat throw Sports knowledge and analysis of picture data Figure 1 Example 1 Some students thrown at a height in front of a brick level a stone in the air photos shown in Figure 1. From the photo you can see the stones just hit the vertical angle of a