摘要
文章对体育运动中一些有趣的物理现象进行探讨,有助于提升学生学习物理的兴趣。文章利用基本的力学定律对乒乓球的6种基本旋转和飞行轨迹进行了详细的分析,讨论了初速度对飞行曲线的影响;进而对其他球类运动中的有趣现象进行了讨论,比如"蛇球"("香蕉球")以侧旋为主,"消失的发球"以逆旋为主,"电梯球"以上旋为主,"零式发球"以下旋为主;并对1997年罗伯特卡洛斯的经典香蕉任意球进行了计算,给出了该球水平方向最大偏移距离和旋转角速度的定量结果。
It is helpful to improve the students＂ interest in learning physics to explore some interesting physical phenomena in sports. In this paper, six kinds of basic rotations and flying routes of table tennis are analyzed in detail by the basic laws of mechanics. The influence of initial velocity on flight route is discussed. Then, some interesting phenomena in the other ball games are discussed. For instance, the ＂snake ball＂ （＂banana ball＂） is mainly sidespin, the ＂disappeared serve＂ is mainly counterclockwise spin, the ＂lift ball＂ is mainly topspin, and the ＂zero serve＂ is mainly backspin. Detailed analysis of Roberto Carlos＇s banana free kick in 1997 was calculated and the quantitative results are given for the offset distance and angular velocity horizontally.
作者
赵丽特
范东华
陈毅湛
Zhao Lite Fan Donghua Chen Yizhan(School of Applied Physics and Materials, Wuyi University, Jiangmen Guangdong 52902)
出处
《物理与工程》
2017年第2期56-60,76,共6页
Physics and Engineering
基金
广东省协同创新与平台环境建设专项资金项目资助(2014A070711024)
五邑大学校级教学质量工程项目资助(JG2014014)
五邑大学青年基金项目(2015zk13)
广东省高校创新团队项目资助(2015KCXTD027)
关键词
乒乓球
旋转
香蕉球
蛇球
电梯球
零式发球
消失的发球
马格努斯力
table tennis
rotation
banana ball
snake ball
lift ball
zero serve
disappeared serve
Magnus force
