Question #69066

A composite system consists of parallel rods XY and PQ , calculate the extension of the system if each rod has a length of in crossectional areas of XY and PQ are 0.1cm^2 and 0.2 cm^2 respectively, the young moduli of XY and PQ are 1×10^11 and 2×10^11Nm^-2 respectively and the applied force is 10000N

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