The aluminum bar assembly is made from two segments having diameters of 40 nun and 20 mm....

The aluminum bar assembly is made from two segments having diameters of 40 nun and 20 mm. Determine the maximum axial stress developed in the bar if the 10-kg collar is dropped from a height of h = 150 mm. Take Eal = 70 GPa, σY = 410 MPa.