运动员投掷铅球时,其成绩由投掷远度(即指铅球出手点与落地点之间的水平距离)来决定.当出手初速度大小一定时,是否出手角(铅球出手的飞行方向与水平线之间的夹角)为45°,铅球的投掷远度最大.本文通过物理新课标中的抛体运动对运动员投掷铅球进行分析并得出相关的结论. When an athlete throws a shot, the result is determined by the throwing distance (ie, the horizontal distance between the shot shot and the landing place). When the initial velocity of the shot is at a certain size, is the shot (Shot shot between the Shot Shot and the Horizontal ) Of 45 °, the throwing distance of throwing shot is the maximum.This paper analyzes the throwing throwing of athletes through the projectile movement in the new physics curriculum and draws the related conclusions.