ON THE GLANCING COLLISION OF THE PARTICLE WITH THE ELASTIC FILM

The problem of planar motion of particle after its collision with an elastic, weightless film stretched over a rigid round r ing. In contrast to the article [1] there it is not excluded the glancing collision of a particle (for example, the ball has is very small radius compared with the radius of the ring with the stretched film.) We have ob- tained exact and approximate formulas of the surface area of an oblique cone. Using the method stated in [2] the tra- jectories equations of the particles' plane motion.