A) 0.328 sec
B) 0.628 sec
C) 0.137 sec
D) 1.00 sec
Correct Answer: B
Solution :
Force constant \[k=\frac{F}{x}=\frac{0.5\times 10}{0.2}=25\ N/m\] Now \[T=2\pi \sqrt{\frac{m}{k}}=2\pi \sqrt{\frac{0.25}{25}}=0.628\]sec
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