Characterising the Service Bounce using a Speed Gun
نویسنده
چکیده
The angled bounce of a sports ball off a hard surface such as a typical tennis court has been the subject of many studies, for example Thorpe and Canaway (1986), Brody (1983), conferences and in-house reports. During play the tennis ball is hit at a variety of speeds, often with spin imparted to contact and bounce off the tennis court from a range of angles. The characteristics of these angled bounces, which depend on the physical properties of the ball and the court have a decided influence on the subsequent game. Perhaps of most importance is the nature of the ball’s first bounce following service when maximum ball speeds are encountered.
منابع مشابه
Direct dark matter searches - Test of the Big Bounce Cosmology
Abstract. We consider the possibility of using dark matter particle’s mass and its interaction cross section as a smoking gun signal of the existence of a Big Bounce at the early stage in the evolution of our currently observed universe. A study of dark matter production in the pre-bounce contraction and the post bounce expansion epochs of this universe reveals a new venue for achieving the obs...
متن کاملPerformance of a Two-stages Gas Gun: Experimental, Analytical and Numerical Analysis
Two stages gas guns are used for various purposes, particularly for mechanical characterization of materials at high rate of deformations. The performance of a two stages gas gun is studied in this work using the theory of the two-stage gas gun proposed by Rajesh, numerical simulation using combined Eulerian/ Lagrangian elements in Autodyna commercial code and experiment using a two stage gas g...
متن کاملExploring Energy Efficiency and Service Quality of Airlines with Cruise Speed Control
In the past decade, fuel consumption and CO2 emission have increased in the airline industry. Large CO2 footprint has a damaging effect on the environment. Global concerns over this issue has made the airline industry to be greener. Most efforts of the green airline industry are improving the fuel consumption to reduce the CO2 emission and its environmental damage. Here, we use cruise speed con...
متن کاملMount CMSC 425 : Lecture 7 Geometric Programming : Sample Solutions
Problem: You are working on a platformer game that takes place in a 2-dimensional space. The hero of your game has a gun that shoots a laser beam. This beam can bounce off of special objects (mirrors) in your environment. For inexperienced users, you provide a mode that will automatically aim the gun to hit a given target by bouncing it off one of these mirrors. More formally, let a and b be tw...
متن کاملA novel boundary condition for the simulation of the submerged bodies using lattice boltzmann method
In this study, we proposed a novel scheme for the implementation of the no-slip boundary condition in thelattice Boltzmann method (LBM) . In detail , we have substituted the classical bounce-back idea by the direct immersed boundary specification . In this way we construct the equilibrium density functions in such a way that it feels the no-slip boundaries . Therefore , in fact a kind of equili...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2007