3. Let T be the Cauchy stress tensor given by the following CX3 0 - [...

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3. Let T be the Cauchy stress tensor given by the following CX3 0 - [₁ dx₂ -CX1 -CX1 0 T 0 CX3 0 (a) Determine the body forces required so that balance of linear momen- tum is satisfied assuming that the body is always in a position of rest (b) At the location x=4e₁ +7e₂-4e3, calculate the stress vector acting on the planar surface -₁ + 2x2 + 2x3 = 2. 3. Let T be the Cauchy stress tensor given by the following CX3 0 - [₁ dx₂ -CX1 -CX1 0 T 0 CX3 0 (a) Determine the body forces required so that balance of linear momen- tum is satisfied assuming that the body is always in a position of rest (b) At the location x=4e₁ +7e₂-4e3, calculate the stress vector acting on the planar surface -₁ + 2x2 + 2x3 = 2.