A composite bar having two sections of cross-sectional area 100mm² and 200m

Question

A composite bar having two sections of cross-sectional area 100mm² and 200mm² respectively. The length of both the sections is 100mm. What will be the total elongation of bar if it is subjected to axial force of 100kN and E = 10⁵ N/mm²?

Options:

A . 1.0

B . 1.25

C . 1.5

D . 2.0

Answer: Option C
Answer: (c).1.5

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