The hangers support the joist uniformly, so that it is assumed the four nails on each hang...

The hangers support the joist uniformly, so that it is assumed the four nails on each hanger carry an equal portion of the load. If the joist is subjected to the loading shown, determine the average shear stress in each nail of the hanger at endsA and B . Each nail has a diameter of 0.25 in. The hangers only support vertical loads.