Problem 1 The round bar shown in Figure I has a uniform elastic modulus of E. A force with magnitude Fo is applied at point B with the sense shown, where there is a step in the diameter. The total length of the bar is Liot. The diameters for each segment of the bar are: dAB and dec. If the normal stress in segment BC is oBc and the normal stress in segment AB is GAB, find the force Fo and the lengths LAB and LBC. LAB LBC Fo/2 tdAB dBC A Fol2 B Figure 1: Round bar with point loads Take E = 200 GPa, Ltot = 1 m, dAB = 50 mm, and dBC = 80 mm. Take OBC = -60 MPa and OAB = 100 MPa. Question 1 5 pts If LAB = Co*LBC, find Co