In the butt splice connection shown below,

$($a$)$ determine the allowable load capacity, if $1"$ dia. A$307$ unfinished bolts are used with standard round holes. Assume the steel plates are A $36$ steel $(Fy=36$ksi.

$($b$)$ If you want to propose an alternative welded connection, instead of bolted connection, what kind of weld would you propose for the spliced connection shown in Figure $($b$)($no calculation needed, only the weld type$).(15$ points$)$