Two 25 in. rods are pin-connected at D. Rod AB has end A sliding on a vertical wall and end B sliding on the floor (A is 20 in. above the floor; B is 15 in. from the wall). Rod DE is pinned at D, the midpoint of AB, and its end E slides in a horizontal guide 25 in. above the floor and 27.5 in. from the wall. Knowing that B moves to the left with a constant velocity of 24 in./s, determine the angular velocity of each rod.