In exercise physiology studies, it is sometimes important to determine the location of a person's center of mass. This determination can be done with the arrangement shown in the figure below. A light plank rests on two scales, which read Fg1 = 355 N and Fg2 = 315 N. A distance of 1.65 m separates the scales. How far from the woman's feet is her center of mass?

A 1.65 m tall woman lies horizontally on a plank with her upper body on the left end and her lower body on the right end. The plank is supported by two scales separated by 1.65 m, one below the leftmost part of the woman's upper body and one below the rightmost part of her lower body. The left scale reads a force of magnitude Fg1. The right scale reads a force of magnitude Fg2, which is less than Fg1.
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