A) \[mgh=\frac{1}{2}k{{x}^{2}}\]
B) \[mgh(h+x)=\frac{1}{2}k{{x}^{2}}\]
C) \[mg(h+x)=-kx\]
D) \[mgh=-kx\]
E) \[mgh=-\frac{1}{2}k{{x}^{2}}\]
Correct Answer: B
Solution :
Conservation of energy yields \[mgh+mgx=\frac{1}{2}k{{x}^{2}}\] \[\Rightarrow \] \[mg(h+x)=\frac{1}{2}k{{x}^{2}}\]You need to login to perform this action.
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