| 关于铅球最佳出手角的讨论 |
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| 引用本文： | 尤明庆.关于铅球最佳出手角的讨论[J].力学与实践,2013,35(1):67-68. |
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| 作者姓名： | 尤明庆 |
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| 作者单位： | 河南理工大学能源科学与工程学院,河南焦作 454010 |
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| 摘 要： | 利用初等数学确定铅球抛高、抛程和最佳抛角的关系,介绍了曲线簇的包络线和斜坡上的抛体求解;在一般情形下证明了抛体以最佳抛角到达指定距离或高度时沿初始抛掷方向的速度为零.
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| 关 键 词： | 抛体运动 抛角 包络线 初等方法 |
| 收稿时间： | 2012-01-04 |
THE OPTIMAL ANGLE FOR THE SHOT-PUT |
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| YOU Mingqing.THE OPTIMAL ANGLE FOR THE SHOT-PUT[J].Mechanics and Engineering,2013,35(1):67-68. |
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| Authors: | YOU Mingqing |
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| Institution: | School of Energy Science and Engineering, Henan Polytechnic University, Henan, Jiaozuo 454010, China |
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| Abstract: | The optimal angle for the shot-put is obtained through elementary mathematics. The envelope of the parabola family is used to determine the parameters for putting shots on a slope. It is shown in the general case that the velocity of the shot in the initial putting-direction is just zero at the given height or distance when it is put in the optimal angle. |
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| Keywords: | shot-put cast-angle envelope primary mathematics |
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