BA) please no hand writing solution for other wise down vote

A 30-kg storm window measuring 900 x 1500 mm is held by hinges at A and B. In the position shown, it is held away from the side of the house by a 600-mm stick CD. 1500 mm 1500 mm D 900 mm C If the stick is suddenly removed, allowing the window to swing shut, determine the angular velocity of the window immediately before impact. (You must provide an answer before moving to the next part.) The angular velocity of the window is rad/s