In a physics lab, a student puts two hands on one weight scale, and two feet on the other weight scale, as shown in the figure. Note that this figure was NOT drawn to the right scale. Thus, one cannot obtain the correct answers based on measurement of the figure by rulers. Suppose that the distance between the two weight scales is L = 1.50 m. The reading on the weight scale for his two feet is N = 72 lbs, and the reading on the weight scale for his two hands is N = 108 lbs. The weight of this student is W = 180 lbs. (Note that pound (lb) is also a unit for weight, which is commonly called "pound-force." The conversion from pound (pound-force) to Newton is 1 lb - 4.448 N.) Obtain the distance XC, which is the horizontal distance between the location of his two feet and the location of the center of gravity of his body. Show your calculations. (This distance Xc is also depicted in the figure below.) N xc L W