Question: A m = 2 . 2 1 kg mass is attached to a thin uniform rod of mass M rod = 4 . 7 9

 A  m=2.21 kg mass is attached to a thin uniform rod of mass M rod =4.79 kg and length L =89 cm is pivoted at point O and initially held in the horizontal position .The rotational inertia of the rod about the center of mass is I cm =1/12ML2.(Take g =9.8 m/s2). What is the angular acceleration of the rod just it is released from rest? 

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