Physical Pendulum: A thin hoop is supported in a vertical plane by a nail. What should the radius of the hoop be in order for it to have a period of oscillation of 1.00 s? The moment of inertia of a hoop of mass M and radius R about a point on its rim is 2MR2.
A. 0.0154 m
B. 0.0621 m
C. 0.124 m
D. 0.1876 m
E. 0.248 m
Answer: C
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