A) \[Cx_{1}^{2}\]
B) \[\frac{1}{2}Cx_{1}^{2}\]
C) \[C{{x}_{1}}\]
D) Zero
Correct Answer: B
Solution :
\[W\int\limits_{0}^{{{x}_{1}}}{F.dx}=\int\limits_{0}^{{{x}_{1}}}{Cx\ dx}=C\left[ \frac{{{x}^{2}}}{2} \right]_{0}^{{{x}_{1}}}=\frac{1}{2}Cx_{1}^{2}\]
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