A Small Ball Is Tied to One End of a Light

Short Answer

A small ball is tied to one end of a light 2.5-m wire, and the other end of the wire is hooked to the ceiling. A person pulls the ball to the side until the wire makes an angle of $35 ^ { \circ }$ with the plane of the ceiling and then gently releases it. What is the angular speed of the ball, in rad/s , as it swings through its lowest point?