In the four-bar linkage shown, control link OA has a counterclockwise angular velocity wo = 10 rad/s dur- ing a short interval of motion. When link CB passes the vertical position shown, point A has coordinates x = -60 mm and y = 80 mm. By means of vector al- gebra determine the angular velocities of AB and BC. %3D 260 mm 180 mm AC 100 mm C 180 mm