Problem #2a - (5 Points): Given the two-bar linkage shown at right. Assuming link AB has an angular velocity of 4 rad/s and an angular acceleration of 2 rad/s², determine the velocity and acceleration of point B in Cartesian vector notation. WAB = 4 rad/s AB = 2 rad/s² A 0.4 m B 30° 30° 0.4 m Problem #2b - (5 Points): For the two bar linkage above, determine the velocity of the piston at POINT C at the instant shown.