A) potential energy is 160 J
B) potential energy is 100 J
C) potential energy is zero
D) potential energy is 120 J
Correct Answer: B
Solution :
[b] Force constant \[k=2\times {{10}^{6}}N/m\] Amplitude \[(x)=0.01m\] Potential Energy \[=\frac{1}{2}k{{x}^{2}}\] \[=\frac{1}{2}\times (2\times {{10}^{6}})\times {{(0.01)}^{2}}=100J\]
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