$1$a$)$For the connection shown, determine the average shear stress produced in the $0\mathrm{.}7-$in diameter bolts if the applied load is P $=32000$ lb$.$

$1$b$)$There are three bolts, and it is always assumed that each bolt supports an equal portion of the external load P$.$ Calculate the shear force supported by each bolt.

V$=\_\_\_\_\_\_$lb