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QUESTION [30 Marks] Figure below shows a pulley system with hanger Point H located on the cross section of hanger at cross section a-a. (6) By construct Mohr's circle, determine the following stress state at point H. (1) The principles stresses; (1) The principle plane; (111) The maximum shearing stress; (iv) Suggest the new stress element at the point and specific the orientation of this state of stress. [15 Marks) (c) Explain the usefulness of Mohr's Circle in material strength analysis and suggest the application of Mohr's circle. Quote any references. [5 Marks] 0.4 m - 0.6mt 0.6 m 0.2 m 0.2 m 0.7 KN 0.7 kN LA Suun 25 mm 75 mm 50 mm Cross-section for a -END OF QUESTION PAPER-