A ball of radius R, moving translationally with speed v and simultaneously rotating around a horizontal axis (see figure), perpendicular to the plane of the figure, with angular velocity w. such that wR » V collides with a flat surface. The deformation of the ball upon impact is elastic. Angle of incidence - a. The friction coefficient is m.. After the impact, the ball continues to rotate in the same direction with a slightly changed angular velocity. Determine the angle of reflection b. The impact time is short. Consider two cases of ball rotation: a) counterclockwise; b) clockwise.
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