16. A 108-in.-long beam AB is attached to the wall with a pin at point A and to a 68-in.-long cable CD. A load lb is attached to the beam at point B. The tension in the cable T is given by:

where L and LC are the lengths of the beam and the cable, respectively, and d is the distance from point A to point D, where the cable is attached. Make a plot of T versus

d. Determine the distance d where the tension in the cable is the smallest.