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 studied. The soccer ball is modelled as an ideal rigid hollow spherical body with six degrees of freedom. which performs a general motion in an immovable air environment with constant parameters. The ball 3D orientation is determined by the three... https://poolsproductscanadas.shop/product-category/polaris-p70-p724-cleaners/