Question $(3)$:

Midterm #$2$

Name:

The built$-$up beam shown is made by gluing together two $20250-mm$ plywood strips and two $50100-$ mm planks. Knowing that the section is subjected to a vertical shear of $10$ kN $.$:

$($A$)$ Determine the average shearing stress in the glued joints.

$($B$)$ If the glued joints are replaced by nails spacing $30$ mm $,$ determine the force$/$nail$.$