推铅球最佳成绩和铅球最佳投出角度问题新探

A New Study of the Best Record of Shot-putting and the Best Putting Angle

本文通过分析铅球抛体的运动轨迹,得出推铅球的最佳成绩公式及新的铅球最佳投出角度公式,抽样检验,本文给出的两个公式能够准确地描述出高、中、低各种水平铅球运动员最佳投出角度和最好的运动成绩。

In the thesis, the writer gets a best-record formula of shot-putting and a new one of the best angle in which the shot is put by analysis the trajectory of the shot抯 projectile motion. And through the sample-check, the two formulas prove to be accurate enough to figure out the best putting angle and record of all levels of shot-putting athletes.