Consider a bar with a rectangular cross$-$section area with a thickness of t $=0\mathrm{.}25$ in$.$ and height of h $=3\mathrm{.}5$ in$.$ When force P $=12$ kips is applied to the bar, the strain gages attached to the surface of the bar reads $\backslash$epsi x $=530\backslash$epsi along the direction of the force and $\backslash$epsi y $=-190\backslash$epsi in the perpendicular direction.