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A steel cylindrical rod of length l and ...

A steel cylindrical rod of length `l` and radius `r` is suspended by its end from the ceiling.
(a) Find the elastic deformation energy U of the rod.
(b) Define U in terms of tensile strain `Deltal//l` of the rod.

A

`2/3pir^3lE((Deltal)/(l))^2`

B

`1/3 pir^3lE((Deltal)/(l))^2`

C

`2/3pir^2lE((Deltal)/(l))^2`

D

`4/3 pir^3lE((Deltal)/(l))^2`

Text Solution

Verified by Experts

The correct Answer is:
C
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