Search results
Results From The WOW.Com Content Network
The most readily observable case of the Magnus effect is when a spinning sphere (or cylinder) curves away from the arc it would follow if it were not spinning. It is often used by football and volleyball players, baseball pitchers, and cricket bowlers. Consequently, the phenomenon is important in the study of the physics of many ball sports.
The forces acting on a gridiron football ball or rugby ball at impact are the force of gravity, the normal force, and the force of friction. Friction will normally have a "longitudinal" component due to the ball's velocity and "tumbling" spin and a "sideways" component due to the "on-axis" spin of the ball induced by the throw.
Backspin generates an upward force that lifts the ball (see Magnus effect). [1] While a normal hit bounces well forward as well as up, backspin shots bounce higher and less forward. Backspin is the opposite of topspin. The technique was invented in 1986 by a Robert Esperat during the Calgary Olympics [citation needed].
Roberto Carlos' bending free kick for Brazil (yellow) against France (blue) in 1997 was struck with the outside of his left foot. [3]Free kick takers often curl and put spin on the ball, to curl it over or around the wall of defending players, out of the reach of the goalkeeper.
FEA or finite element analysis is another engineering modeling tool that applies to the field of sports engineering to simulate the physics of applied forces acting in a system. For example, FEA analysis can be used to analyze the impact of a ball against a tennis racket or different the deformation resulting from the impact of a football. [1]
Football players often display the reflex after a big hit, and it can be a sign of a concussion. ... “The reflex can also be activated after significant force is applied to the brain,” says ...
The post Cam Newton defied the laws of physics in an Atlanta brawl at a youth football tournament appeared first on TheGrio. OPINION: There were no serious injuries, but participants should commit ...
[10] [11] Moreover, words which are synonymous in everyday speech are not so in physics: force is not the same as power or pressure, for example, and mass has a different meaning than weight. [12] [13]: 150 The physics concept of force makes quantitative the everyday idea of a push or a pull. Forces in Newtonian mechanics are often due to ...