The cam is designed so that the center of the roller A which follows the contour moves o...

The cam is designed so that the center of the roller A which follows the contour moves on a limaçon defined by r = b – c cos θ, where b > c. If the cam does not rotate, determine the magnitude of the total acceleration of A in terms of θ if the slotted arm revolves with a constant counterclockwise angular rate