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  • A uniform rod is kept at smooth horizontal surface, a constant force is applied on the rod in horizontal direction at end A. Find the ratio of energy stored per unit volume at end A to the energy s

A uniform rod is kept at smooth horizontal surface, a constant force is applied on the rod in horizontal direction at end A. Find the ratio of energy stored per unit volume at end A to the energy stored per unit volume in the middle of the rod.
 

Option: 1

2


Option: 2

4


Option: 3

8

 


Option: 4

10


Answers (1)

best_answer

U= \frac{1}{2}\frac{\text{stress}}{Y}

\text{stress}= \frac{\text{tension}}{\text{Area}}

\frac{U_{A}}{U_{\text{middle}}}= \frac{(T_{A})^{2}}{(T_{\text{middle}})^{2}}= \frac{F^{2}}{\left ( \frac{F}{2} \right )^{2}}= 4

 

Posted by

rishi.raj

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