A) \[\frac{a{{L}^{2}}}{2}+\frac{b{{L}^{3}}}{3}\]
B) \[\frac{1}{2}\left[ \frac{a{{L}^{2}}}{2}+\frac{b{{L}^{3}}}{3} \right]\]
C) \[a{{L}^{2}}+b{{L}^{3}}\]
D) \[\frac{1}{2}(a{{L}^{2}}+b{{L}^{3}})\]
Correct Answer: A
Solution :
[a] \[w=\int\limits_{0}^{L}{F.}dx\Rightarrow \omega =\frac{a{{L}^{2}}}{2}+\frac{b{{L}^{3}}}{3}\]
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