Biological Application A gravity board is a convenient and quick way to determine the location of the center of gravity of a preson. it consists of a horizontal board supported by a fulcrum at one end and a scale at the other end. to demonstrate this in class, your physics professor calls on you to lie horizontally on the board with the top of your head directly above the fulcrum point as shown in figure 12-33. the fulcrum is 2.00 m from the scale. in preparation for this experiment, you had accurately weighed yourself and determine your mass to be 70.0kg. when you are at rest on the gravity board, the scale advances 250 N beyond its reading when the boardis there by itself. Use this data to determine the location of your center of gravity relative to your feet.