(a) Sketch the stress components for an element A on a thin-walled cylindrical pressure vessel shown in Figure 1. (2 marks) A Figure 1 Figure for Question 2- a thin-walled cylindrical pressure vessel. Also shown is an element 'A' on the surface of the vessel. (b) What is the stress state of element A on the thin-walled cylindrical pressure vessel? (1 mark) (c) What assumption is made based on this stress state to simplify the stress analysis of thin-walled pressure vessels?