The brass rod shown in Fig XXXXXXXXXXhas a diameter of 20 mm. The collar D moves along the rod and strikes the metal plate attached at the lower end. If E = 100 GPa, determine the strain energy and...

The brass rod shown in Fig. 10.60 has a diameter of 20 mm. The collar D moves along the rod and strikes the metal plate attached at the lower end. If E = 100 GPa, determine the strain energy and instantaneous elongation when (i) the collar D weighs 1000 N and falls through a height of 5 mm, and (ii) the collar weighs 10 N and falls through a height of 500 mm.