a 31' solid circular bar of 2" diameter is fixed to a wall. it is made of aluminum of E=10*10^6. a 30" circular solid 1" diameter aluminum bar is welded to the 2" bar at a 30" centerline perpendicular relative to the other bar per the diagram. a 50 pound load is attached to the end of the second bar at 30". calculate the torque and torsional shearing at the wall.