A uniform rod is 3.0 m long. The rod is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest at an angle of 27° above the horizontal. What is the angular speed of the rod as it passes through the horizontal position?
A. 3.0 rad/s
B. 2.8 rad/s
C. 2.1 rad/s
D. 2.5 rad/s
E. 3.4 rad/s
Answer: C
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