A Physical Pendulum Is Composed of a Disc Whose Center

Multiple Choice

A physical pendulum is composed of a disc whose center of gravity is attached to a thin rod.The disc has a moment of inertia of 1/2 MR².The mass of the disc is 1.00 kg and has a radius of 40 cm.The length of the rod is 50.0 cm.The period of the physical pendulum is

A) 2.22 sec.
B) 2.03 sec.
C) 1.89 sec.
D) 1.63 sec.
E) 1.32 sec.