Hi all,
I am having trouble with one of the sample problems that NCARB gives regarding section modulus (see photo).
Why can I not use the formula S=b(d^2)/6 to solve this problem? When I do, I get 46.7 in^3, rather than 57.33 in^3.
If I must use the formula, S=I/C to solve, is there a way to know c without it being given in the question? I thought it was a constant, but apparently it can be found by diving d (overall) by 2?
Thanks in advance!