For a bolted assembly with six bolts, the stiffness of each bolt is kb 5 3 mlbf/in and the stiffnessof the members is km 5 12 mlbf/in per bolt. an external load of 80 kips is applied to theentire joint. assume the load is equally distributed to all the bolts. it has been determined touse 12 in-13 unc grade 8 bolts with rolled threads. assume the bolts are preloaded to 75 percentof the proof load.(a) determine the yielding factor of safety.(b) determine the overload factor of safety.(c) determine the factor of safety based on joint separation