The circular cam is mounted eccentrically about its fixed bearing at O and turns counter...

The circular cam is mounted eccentrically about its fixed bearing at O and turns counterclockwise at the constant angular velocity The cam causes the fork A and attached control rod to oscillate in the horizontal x-direction. Write expressions for the velocity v_x and acceleration a_x of the control rod in terms of the angle measured from the vertical. The contact surfaces of the fork are vertical.