Question $4.$

An offset bar is loaded as shown in the following figure. The weight of the bar can be neglected. Find out the maximum tensile shear stress where it is$.$

Maximum ofset distance $x=400mm.$ Allowable stress is $84$ MPa $($A group$).$ Check it whether or not system is safe?

Maximum offset distance $x=500mm.$ Allowable stress is $60$ MPa $($ B group$).$ Check it whether or not system is safe?