Determine the angular acceleration of AB and the linear acceleration of A for the position 0 = 90 if 0 = 2.9 rad/s and 0 = 0 at that position. The angular acceleration of AB is positive if counterclockwise, negative if clockwise. The acceleration of A is positive if to the right, negative if to the left. 475 mm 385 mm OB - x O 430 mm Answers: aAB = rad/s2 i m/s2