A 2.0 m long wooden pole that weighs 280 g is balanced at its midpoint. A 4.0 g dart strikes the pole halfway between its midpoint and its upper edge as seen in the figure below, traveling initially at 260 m/s and departing at 120 m/s. After the collision, what is the pole's angular speed?

• A. 1.1 rad/s
• B. 3.0 rad/s
• C. 4.0 rad/s
• D. 5.2 rad/s

Answer: (B)