A) 20 rad/s
B) 40 rad/s
C) 100 rad/s
D) 200 rad/s
Correct Answer: A
Solution :
\[T=m{{\omega }^{2}}r\] Þ \[10=0.25\times {{\omega }^{2}}\times 0.1\] Þ \[\omega =20\,rad/s\]
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