A centered force P and a horizontal force Qx are applied at point C of the rectangular bar shown in the figure. A 45 ° strain rosette on the bar surface at point A indicates the following strains: ε1 = -60x10-6, ε2 = 240x10-6, ε3 = 200x10-6. If it is known that E = 29x10 ^ 6 psi and v = 0.30. determine the magnitudes of P and Qx

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