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Analysis of two-disc collisions

A simple model is developed for inelastic oblique collisions between two discs moving on a flat horizontal surface including the effects due to the action of frictional forces at impact. This formulation considers cases where impact occurs with and without sliding and makes possible direct estimates of the coefficients of restitution and friction from the measurement of the angles of impact and scattering. A simple procedure to determine inertial masses can be derived from this analysis.