How does gravity play a roll in a ball dropped into a spherical bowl? You can simulate the physical condition with SolidWorks. This was asked of a FIRST Robotics member who saw a similar movie somewhere on YouTube. Physical behavior is determined by the mates. For example, a tangent mate was created between the ball and a bowl. A coincident mate is also created between the Front Plane. Then gravity was added to the ball.
The movie file shows the result and the part and assembly files are below. Marie
Model Files: Download gavity_ball_and_bowl.zip