Guys, this is a difficult one for me to solve but I hope that with your help I can get an answer. Please tell me how you arrived to the answer. The problem: We let a ball with a mass (m) of extreamely small radius fall from the top of a spheare with a radius (R) which is resting on a horizontal plane. We must supose that there is no friction. Determine the angle at which the ball leaves the surface of the spheare relative to the horizontal line passing through the center point of the spheare. Also calculate the velocity with which it strikes the horizontal plane.