center at G. Determine the force in the hydraulic cylinder AB (positive if in tension, negative if in compression) and the magnitude of the pin reaction at C.

4.27 Given the following state of stress at a point in a continuum, 0 0 AT₂ 0 0 Br3 MPa, Ar₂ - Bra 0 [o] = where A and B are constants. Determine (a) the body force vector such that the stress tensor corresponds to an equilibrium state, (b) the three principal invariants of at the point x = Bê₂ + Aê3, (c) the principal stress components and the associated planes at the point x = Bê2 + Aê3, and (d) the maximum shear stress and associated plane at the point x = Bê₂ + Aê3.

Answer for part d hint dot the force vector with unit vector along AC