A small solid sphere of mass m & radii r is released from rest from top of a curved path of height H and starts pure rolling motion as it reaches a small stone attached to the curved path of negligible mass which is in turn attached on the horizontal surface of the path. The sphere has an elastic collision with stone. The stone is sufficent to just only provide a parabolic path of angle Q with the horizontal and range 2R so that the sphere can land on an inclined plane of inclination Q and fixed on horizontal path of curved surface.The sphere has 2 collisions with the incline and stops afterwards.The coefficent of restitution is e for sphere-inclined plane collision. The distance 2R is the distance between the attached stone and the fixed incline. The sphere after reaching attached stone goes at a projectile of angle Q with horizontal and lands on incline of same angle Q.Find the displacement of sphere down the wedge after 2 collisions? Please reply fast
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