The bar shown in the figure is made of a single piece of material. It is fixed at one end and consists of two segments of equal length 
but different cross-sectional area A and 2 A. What is the change in length of the entire system under the action of an axial force F?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Elongation in first part with area 
Elongation in second part with area 
Total elongation 
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