Despite the fact that soccer is one of the most popular sports in the world, little attention has been paid to this game scientifically which could otherwise provide a broad range of interesting outcomes. Sport equipment has a significant effect on how a game is played. Different features of the soccer ball such as its size, structure, weight and potential incoming pressure also affect the natu...

Dynamics and Impact Control of a Flying Soccer Ball Jae Yeon Choi and Byung-Ju Yi School of Electrical Engineering and Computer Science, Hanyang University, Ansan 426-791 (Received 12 August 2008, in nal form 31 October 2008) This paper deals with the dynamics and the impact control of a soccer ball driven by a kicking robot. The trajectory of the ball is a function of its initial velocity, lau...

The purpose of this study was to investigate the influence of approach velocity on centre of mass (CoM) motion and total body angular momentum during the maximal instep soccer kick. Four semi-professional players performed kicks at Self-Selected (SS), Fast and Slow approach speeds and full body motion was captured at 1000Hz. Dependent variables were CoM approach velocity, CoM deceleration impul...

This study aimed to investigate whether high peak ground reaction forces and high average loading rates are necessary to bowl fast. Kinematic and kinetic bowling data were collected for 20 elite male fast bowlers. A moderate non-significant correlation was found between ball speed and peak vertical ground reaction force with faster bowlers tending to have lower peak vertical ground reaction for...

The aim of this work is to exhibit a multiple impact law for rigid body dynamical system which meets the properties of closing the non-smooth dynamical equations and of corroborating experiments. This law is based on the impulse correlation ratio which is computed from equivalent regularized model with compliant contact. A case-study on 3-ball chain and -ball chain are delineated and results on...

Abstract This aim of this work is to exhibit an multiple impact law for rigid body dynamical system which meets the properties of closing the non-smooth dynamical equations and of corroborating experiments. This law is based on the impulse correlation ratio which is computed from equivalent regularised model with compliant contact. A case-study on 3-ball chain and -ball chain are delineated and...

We study the dynamics of a type of nonconservative billiards where the ball is “kicked” by the wall giving a new impulse in the direction of the normal. For different types of billiard tables we study the existence of attractors with dominated splitting.

This paper discusses experiments done as a class assignment in a Dynamics course in order to investigate the relation between the duration of a linear impulse and the energy dissipated during impact. After analysis had been presented in lecture on the relation between work and energy and on the connection between linear impulse and linear momentum, a series of distinct but related projects was ...