A rectangular bar has a cross section that is $30\mathrm{.}00mm50\mathrm{.}00mm.$ It is mounted rigidly to plates above and below it $($across the $30\mathrm{.}00mm$ dimension$).$ The top plate applies a shear force to the bar, $V=4500$ Newtons, causing the top corners to displace $0\mathrm{.}440mm$ to the right. Calculate the shear strain $v.$ Calculate the average shear stress $.$ Sketch the cross section of the bar, showing the unstressed state, and showing the stressed state using dashed lines. Show the shear force shown on the diagram. $(10$ Points$)$