Question 2 (1.5 points)
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Two round bars are welded together and loaded axially as shown. If $d_1 = 2$ in., $d_2 = 1.5$ in., $P_1 = 20$ kip, and $P_2 = 10$ kip, determine the tensile stress at the middle of AB portion of the bar.
9.55 ksi
12.6 ksi
22.4 ksi
8.50ksi
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