1.25 in. 1.25 in. 1.25 in. 1.25 in.

! 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 lb, determine the allowable vertical shear if the spacing s between the nails is 7 in. Assume a=2 in, b=4.5 in and c=6.5 in. a S $ 2 in. The centroidal moment of inertia is given as | (in 4)

These garden shears were manufactured using an inferior material. Using a loading of 50 lb applied normal to the blades, and appropriate dimensions for the shears, determine the absolute maximum bending stress in the material and show why the failure occurred at the critical location on the handle.