The physics of football pdf

The physics of a football players performance the new york giants brandon jacobs is a 64, 270 pound running back. Physics is the study of matter and its motion through time and space, as well as its interaction with energy and the forces created by this. Football, also called association football or soccer, game in which two teams of 11 players, using any part of their bodies except their hands and arms, try to maneuver the ball into the opposing teams goal. The e in this formula is called the coefficient of restitution and mea sures what speed a ball bounces up at compared to the speed it hits the ground on the way down. This report will focus on the leg and ball velocities for punting an american football. A football, however, is smoother than a golf ball and the critical transition is reached at a much higher reynolds number 4. Shaun rogers, firing off the line of scrimmage, can developas much as four horsepower by himself. It was the aim of this thesis to examine the physical and physiological demands of elite football.

But for an instant, the force maybe as much as a ton. June 4, 2007 abstract in this paper we examine the detailed theory of the american football in ight, with spin and air resistance included. Armed with new tools, researchers are now studying the science of a gridiron fundamental. Physics of punting a football wooster physics the college of. The average football sack can produce a boneshattering 1600 lbs of force. The trajectory of a football pass or kick illustrates not only the principles of projectile motion, but also some basic concepts of aerodynamics. Mississippi state university physics instructor josh winter takes you deep into the game of football to explain some of the physics at work during the onfield action. Some of these rules are designed to maintain the safety of players, while others are designed to increase the competitiveness of the game. The total trajectory of a soccer ball post stationary kick was simulated using matlab. On the flight of the american football abstract cal state fullerton.

The film was analyzed frame by frame and velocities for the knee, shin, ankle, toe and two tips of the football. Pdf examining the physical and physiological demands of. Fearn physics department, california state university fullerton, fullerton ca 92834 usa. Only the goalkeeper is permitted to handle the ball and may do so only within the penalty area surrounding the goal. Examining the physical and physiological demands of elite football. Physics of football notes university of rochester physics. Hartschuh physics department, the college of wooster, wooster, ohio 44691 may 2, 2002 a digital video camcorder was used to film the kicking leg and initial ball trajectory when punting a football. The physics of football iopscience institute of physics. The physics of kicking a soccer ball the mathematics shed. The physics of kicking a soccer ball mathematics shed. Read and learn for free about the following article. Physics can be used to describe the football s trajectory. Pdf in this paper the trajectories of a soccer ball for the most important kicks in the football game a corner kick and a direct free kick are. The pack is structured into eight sessions intended to be organised as extracurricular activities.