If a double$-$edged full potential $($potential $1)$ with positive $(+)$ Burgers vector is present in the X$-$Y coordinate system as shown in the following figure $($the shear modulus of this metal is $80$ GPa, the atomic radius is $0\mathrm{.}127$ nm$,$ and the Poisson's ratio is $0\mathrm{.}3)$ Calculate the force, $0$x$,$ in MPa, acting on point A in Figure, by potential $1$ of the origin