Consider a horizontally cantilevered beam of constant rectangular cross-section (thus upper left corner of figure 16.33 in the assigned reading accompanying the lab instructions) that a length l from its base must deflect by an amount y to accommodate the snap-head's height above the top surface of the beam. a) From any Strength of Materials or Elements of Mechanical Design textbook, what is the relationship of this deflection y to the bending load P acting transversely across the beam that must exist at this length l, as well as the beam's cross-sectional dimensions and its elastic modulus E