Spaceship, relative motion, please help?

A spaceship in deep interstellar space produces artificial gravity by having a cylindrical crew cabin that rotates with sufficient angular velocity so that crew members experience a force like that on earth. In this cabin a crew member throw a ball into the air that it travels about � way to the center point and comes back down to her. Understanding that she is in a non-inertial reference frame, describe the path of the ball in two reference frames: 1) from the perspective of an outside observer (who is in an inertial reference frame and watches the cabin spin); and 2) from the crew member's perspective