A uniform rigid rod of mass m = 1 kg and length L = 1 m is hinged at i – McqOptions

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1.	A uniform rigid rod of mass m = 1 kg and length L = 1 m is hinged at its centre and laterally supported at one end by a spring of spring constant k = 300 N/m. The natural frequency ωn in rad/s is
A.	10
B.	20
C.	30
D.	40
Answer» D. 40

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