A Uniform Rod Is 3

Multiple Choice

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