An aluminum bar (E 5 72 GPa, ? 5 0.33) of diameter 50 mm cannot exceed a diameter of 50.1 mm when compressed by axial force P. The maximum acceptable compressive load P is approximately:
(A) 190 kN
(B) 200 kN
(C) 470 kN
(D) 860 kN
(D) 860 kN
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