对推铅球最佳出手角度的重新认识

从数学角度对铅球出手前的运动过程进行生物力学分析，并对一般抛射运动规律进行数学逻辑分析。结果表明铅球出手速度与出手角度间存在一定的函数变化关系；该关系是影响和制约铅球抛射运动的约束条件。这一结果提示出手角度与出手速度间的合理配置是铅球获得最大远度的最佳出手角度。

The Newly Cognition of the Best Angle of Casting Shot

From the angle of mathematics the paper analyzes the moving process of shot according to the principles of biological mechanics. It also rationalizs the general moving discipline of casting sport with mathemtical logic. The researcher shows that there exists a certain functionary relation between the muzzle velocity of shot and the casting angle, which has great effect on the shot casting sports. This conclusion suggests that the perfect casting angle of shot casting is in fact the reasonable collocation and harmonization of casting angle and muzzle velocity.