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What is the correct answer?
4
The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)
A.
2π. √(q/I)
B.
2π qI
C.
(1/2π). √(q/I)
D.
1/2π
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