A and B have masses of $141\mathrm{.}8$ and $213$ kg respectively. These masses are at the points $(5\mathrm{.}6,9\mathrm{.}3)$ and $(7\mathrm{.}3,9\mathrm{.}1)$ where all distances are measured in meters. What force does a $310\mathrm{.}5$ kg mass feel at the point $(6\mathrm{.}4,1)?$ what is the direction.