Question 2. [20 marks] Figure 1 displays the response to shear stress over a solid and over a fluid. a) [7.5 marks/explanation) Explain the difference between the behaviors illustrated on Figure 1 and indicate which behavior (illustrated on Figure 1A or 1B) corresponds to the response of a solid b) 15 marks] What is the significance of "B" on both Figures 1A and B. If shear stress has been removed, what happens to "B" for the case of a liquid (Figure 1A)? A B B'=B F F B B'>B B F F I Figure 1: Response to shear stress over a fluid and over a solid