For a permanent bolted assembly with 12 bolts, the stiffness of each bolt is kb = 3 bf/in and the stiffness of the members is km = 10 bf/in per bolt. An external load of 60 kips is applied to the entire joint. Assume the load is equally distributed to all the bolts. It has been determined to use 5/8 in-13 UNC grade 7 bolts. (a) (2 points) Determine the yielding factor of safety. (b) (2 points) Determine the factor of safety based on joint separation. (c) (2 points) Determine the load factor for overload.