The cross-sectional area of the bar is 5 cm². Use E = 70 GPa for aluminum, and E = 200 GPa for steel. L. Aluminum Steel Aluminum 80 kN 20 kN 30 kN ►70 kN D A B - 3 m – - 4 m - - 5 m–

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Q: 1.5 m 1.5 m 1.5 m PV B -2 m – -2 m –

A: Given , P = 10 KN

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