A physical pendulum is constructed such that two spheres of different radii are welded together. A rod is then welded to the top of these two spheres as shown. The length of the rod is 2.90 m while the mass is 2.00 kg. The radius of the small (upper) sphere is 0.790 m with a mass of 8.20 kg. The radius of the lower (larger) sphere is 0.960 m with a mass of 11.6 kg. The entire system is hung from the end of the rod. a. what is the rotational intertia of the rod? b. what is the rotational intertial of the small sphere? c. what is the rotational intertia of the large sphere?

A physical pendulum is constructed such that two spheres of different radii are welded together. A rod is then welded to the top of these two spheres as shown. The length of the rod is 2.90 m while the mass is 2.00 kg. The radius of the small (upper) sphere is 0.790 m with a mass of 8.20 kg. The radius of the lower (larger) sphere is 0.960 m with a mass of 11.6 kg. The entire system is hung from the end of the rod. a. what is the rotational intertia of the rod? b. what is the rotational intertial of the small sphere? c. what is the rotational intertia of the large sphere?

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Question

a. what is the rotational intertia of the rod?

b. what is the rotational intertial of the small sphere?

c. what is the rotational intertia of the large sphere?

d. what is the distance from the pivot point to the center of mass of the system?

e. what is the period of oscillation of the pendulum?

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