Problem $14\mathrm{.}10$

Calculate the allowable bending moment for a solid rectangular $6-$in$.-$by$-16-$in$.$ timber beam if the allowable bending stress is $1000$ psi $.$ Assume that the large dimension is vertical and parallel to the applied loads.

a$)$ Use nominal dimensions given above

b$)$ Use dressed dimensions by subtracting $\frac{1}{2}"$ from the dimensions given above.