Question: The timber box section (a) of Problem is made up of four component parts so connected as to act as a single unit. Calculate the maximum horizontal shear stress if the member is subjected to a maximum vertical shear of 4500 lb
Problem: Calculate the section modulus with respect to the X-X axis for the sections shown.
![1232_48.png](http://secure.expertsmind.com/CMSImages/1232_48.png)