Consider a Physical Pendulum Constructed by Attaching a Thin, Massless

question 5

Multiple Choice

Consider a physical pendulum constructed by attaching a thin, massless rod to the center of a uniform disc of mass 500 g and radius 4.00 cm. The disc has a moment of inertia of ½ MR² about an axis perpendicular to the plane of the disc, through its center. With the rod hung from one end (the pivot) , the plane of the disc (attached to the other end) is vertical. If the rod has a length of 50.0 cm, then the period of (small amplitude) oscillations of the pendulum will be

• A) 1.24 sec.
• B) 1.42 sec.
• C) 1.74 sec.
• D) 1.90 sec.
• E) 2.25 sec.

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