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Forces acting on a uniform cylindrical r...

Forces acting on a uniform cylindrical rod and having length l, area of corss-section A and Young's moldulus Y are shown in the figure. Elongation of the rod is

A

`(2Fl)/(5AY)`

B

`(3Fl)/(2AY)`

C

`(2Fl)/(AY)`

D

`(8Fl)/ (3AY)`

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