Consider a thin 22 m rod pivoted at one end. A uniform density spherical object (whose mass is 1 kg and radius is 4.8 m) is attached to the free end of the rod. The moment of inertia of the rod about an end is I-rod=1/3m L^2.The moment of inertia of the sphere about its center-of-mass is I-sphere=25m r^2. The rod is initially at rest at 24◦ below the horizontal. The acceleration of gravity g= 9.8 m/s^2. What is the angular acceleration of the rod immediately after it is released?Answer in units of rad/s^2.
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