Abstract
Free kick is a common scoring method on football court. Previous study had not yet constructed an effective system assisting players in training free kicks. On basis of studying Dynamic principle, Bernoulli principle and Magnus effect leading to occurrence of such irregular trajectories, stress analysis is conducted to establish the corresponding mathematical model. Based on that, a free-kick simulation and training system is designed to assist daily training of football players in this paper. Experiments are implemented to analyze the effect of parameters such as the kicking point, the kicking force and the kick angle on trajectory of football. Additionally, suggestions are given on how to shoot a goal successfully avoiding the walls and defense of goalkeeper through optimizing the parameters of the kicking point, the kicking force and the kick angle.
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