Structural I, $5/8$ in$.$ B$-$B Plyform plywood is to support a load of $125l\frac{b}{f}t2$ over $3$ or more equal spans

with face grain oriented parallel to the direction of plywood span. Determine the maximum span $l($in$.)$

based on each of following criteria separately and identify the controlling maximum span.

a$)$ Bending;

b$)$ Shear, with $lb=1\mathrm{.}5$ in$.$;

c$)$ Deflection if limited to $\frac{l}{400}.$