(Solved): Problem \#2 (General elasticity) Consider the equilibrium of a two-dimensiona ...

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Problem \#2 (General elasticity) Consider the equilibrium of a two-dimensional differential element in Cartesian coordinates as shown in the following figure. (a) Explicitly sum the forces and moments and develop the two-dimensional equilibrium equations. [6pts] (b) Write down the corresponding tensor expression for the equilibrium equations you derived in (a).