(Solved): Required information Three boards are nailed together to form a beam that is subjected to a vertic ...

Required information Three boards are nailed together to form a beam that is subjected to a vertical shear. Knowing that the allowable shearing force in each nail is \( 110 \mathrm{lb} \), determine the allowable vertical shear if the spacing \( s \) between the nails is 6 in. Assume a=2 in, \( b=4 \) in and \( c=6 \) in. The centroidal moment of inertia is given as