A Pencil That Is 15

Multiple Choice

A pencil that is 15.7 cm Iong is released from a vertical position with the eraser end resting on a table. The eraser does not slip as it tips over. Treat the pencil like a uniform rod. What is the angular speed of the pencil just before it hits the table?

A) 3.70 rad/s
B) 13.7 rad/s
C) 24.5 rad/s
D) 7.23 rad/s
E) 16.8 rad/s