One force acting on a machine part is F$=(5\mathrm{.}00$N$)$i$^+(4\mathrm{.}00$N$)$j$^$F$=(5\mathrm{.}00$N$)$i$^+(4\mathrm{.}00$N$)$j$^.$ The vector from the origin to the point where the force is applied is r$=(0\mathrm{.}450$m$)$i$^+(0\mathrm{.}150$m$)$j$^$r$=(0\mathrm{.}450$m$)$i$^+(0\mathrm{.}150$m$)$j$^.$