College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

Exercise 91

The location of a person's center of gravity relative to his or her height can be found by using the arrangement shown in Fig. The scales are initially adjusted to zero with the board alone. (a) Would you expect the location of the center of gravity to be (1) midway between the scales, (2) toward the scale at the person's head, or (3) toward the scale at the person's feet

FIGURE Locating the center of gravity See Exercise.
Why (b) Locate the center of gravity of the person relative to the horizontal dimension.