A Nonuniform 2

A nonuniform 2.0-kg rod is 2.0 m long.The rod is mounted to rotate freely about a horizontal axis perpendicular to the rod that passes through one end of the rod.The moment of inertia of the rod about this axis is 4.0 kg.m².The center of mass of the rod is 1.2 m from the axis.If the rod is released from rest in the horizontal position,what is its angular speed as it swings through the vertical position?

A) 3.4 rad/s
B) 4.4 rad/s
C) 4.3 rad/s
D) 5.8 rad/s
E) 6.8 rad/s

Correct Answer:

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