The motor rotates about the z axis with a constant angular velocity w1 = 2.9 rads Simultaneously, shaft OA rotates with a constant angular velocity w2 = 7.1 rad s The distances shown in the figure are d OA =250 mm and d AC =250 mm Also, collar C slides along rod AB with a velocity and acceleration of 5.7 ms and 2.53m (s 2) Determine the absolute velocity and acceleration of collar C' at the instant shown.