Problem 3: Four-Bar Mechanism (10 points) Crank CB oscillates about C through a limited arc, causing crank OA to oscillate about O. When the linkage passes the position shown with CB horizontal and OA vertical, the angular velocity of CB is 2 rad/sec counterclockwise. For this instant, determine the angular velocities of OA and AB. y TAB 75 mm 100 mm x 50 mm B 250 mm ФСВ C