{"title":"Tennis. Analytics when applying the most powerful shot","authors":"Mаksym Suprunenko, Olha Kolomieitseva","doi":"10.31392/udu-nc.series15.2024.4(177).31","DOIUrl":null,"url":null,"abstract":"Actuality. Many coaches mistakenly assume that the flight of the ball on a straight line trajectory with a flat feed and impact will hit the tennis net. As a result, it is considered that adolescents do not need to teach a flat serve, but to teach immediately spin serve with the rotation of the ball. \nPurpose of the article: to show analytical and theoretical researches of flat shots in tennis their ability for the best application. \nMethodology. Integration of knowledge of various sciences and their methods to solve the problems of physical education and sports training. \nScientific novelty. An analytical method over of calculation of descriptions of motion is brought by means of kinematics. Factors affecting the trajectory of the ball's flight have been educed. The analytical dependence of the instantaneous and final speed, range and altitude of the ball on the mechanical parameters without taking into account the air resistance is derived. The analytical analysis of these shots is expounded with initial velocity, depending on the angle of slope to horizon under that there is a blow to the ball in the distance h from the plane of court. Correcting coefficients over are brought. A percent on that actual speed can change in a flat blow and serve is given. The advantages and disadvantages of these strikes are given. The terms of implementation of flat serve, her advantages and defects, are examined. \nConclusions. Most powerful and at the same time most difficult for implementation flat shots at that a ball is not given by a rotation are considered. It is necessary to take into account that rectilineal and curvilinear trajectories outbowed only in a vertical plane are named flat. A trajectory of flight of the ball sent by a player can be different. The decisive influence on it is the rotation of the ball during its flight. The rotation of the ball during its flight has a decisive influence on it. Factors affecting the trajectory of the ball's flight have been clarified.","PeriodicalId":507564,"journal":{"name":"Scientific Journal of National Pedagogical Dragomanov University. Series 15. Scientific and pedagogical problems of physical culture (physical culture and sports)","volume":" November","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientific Journal of National Pedagogical Dragomanov University. Series 15. Scientific and pedagogical problems of physical culture (physical culture and sports)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31392/udu-nc.series15.2024.4(177).31","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Actuality. Many coaches mistakenly assume that the flight of the ball on a straight line trajectory with a flat feed and impact will hit the tennis net. As a result, it is considered that adolescents do not need to teach a flat serve, but to teach immediately spin serve with the rotation of the ball.
Purpose of the article: to show analytical and theoretical researches of flat shots in tennis their ability for the best application.
Methodology. Integration of knowledge of various sciences and their methods to solve the problems of physical education and sports training.
Scientific novelty. An analytical method over of calculation of descriptions of motion is brought by means of kinematics. Factors affecting the trajectory of the ball's flight have been educed. The analytical dependence of the instantaneous and final speed, range and altitude of the ball on the mechanical parameters without taking into account the air resistance is derived. The analytical analysis of these shots is expounded with initial velocity, depending on the angle of slope to horizon under that there is a blow to the ball in the distance h from the plane of court. Correcting coefficients over are brought. A percent on that actual speed can change in a flat blow and serve is given. The advantages and disadvantages of these strikes are given. The terms of implementation of flat serve, her advantages and defects, are examined.
Conclusions. Most powerful and at the same time most difficult for implementation flat shots at that a ball is not given by a rotation are considered. It is necessary to take into account that rectilineal and curvilinear trajectories outbowed only in a vertical plane are named flat. A trajectory of flight of the ball sent by a player can be different. The decisive influence on it is the rotation of the ball during its flight. The rotation of the ball during its flight has a decisive influence on it. Factors affecting the trajectory of the ball's flight have been clarified.
实际情况。许多教练错误地认为,以直线轨迹飞行的球在平抛和撞击后会击中网球网。因此,人们认为青少年不需要教授平直发球,而应该立即教授带球旋转的旋转发球。文章目的:通过分析和理论研究,展示网球平击球的最佳应用能力。方法。综合运用各种科学知识及其方法来解决体育教学和运动训练中的问题。科学新颖性。通过运动学的方法,为运动描述的计算提供了一种分析方法。对影响球飞行轨迹的因素进行了研究。在不考虑空气阻力的情况下,得出了球的瞬时和最终速度、射程和高度对机械参数的分析依赖关系。对这些击球的分析阐述了初始速度,这取决于球在距离球场平面 h 的距离内受到打击时与地平线的倾斜角度。计算出了修正系数。给出了平击球和发球时实际速度变化的百分比。给出了这些击球的优缺点。研究了平击发球的实施条件、优点和缺陷。结论。考虑了最强大同时也是最难实施的平击球,即球不旋转。需要注意的是,直线和曲线轨迹只在垂直面上发出的球都被称为平直球。球员发出的球的飞行轨迹可以是不同的。对其产生决定性影响的是球在飞行过程中的旋转。球在飞行过程中的旋转对其有决定性影响。影响球飞行轨迹的因素已经明确。