A cylindrical steel rod AD is homogenous and having a uniform cross section (d=30mm) and subjected to different loads as shown in Fig.

A cylindrical steel rod AD is homogenous and having a uniform cross section (d=30mm) and subjected todifferent loads as shown in Fig.Q1.a). Plot the distribution of axial-load and axial-stress along the length of the rod AD. [10 Marks]b). Calculate the total increase in the length of the rod, knowing that E=200GPa. [05 Marks]c). If the rod is attached to the support at point D by using three bolts, determine the smallest allowablediameter of the bolt (dbolt) knowing that the allowable normal stress in the bolts is 35MPa