As a 2.0-kg block travels around a 0.50-m radius circle it has an angular speed of 12 rad/s.
The circle is parallel to the xy plane and is centered on the z axis, 0.75 m from the origin. The
component in the xy plane of the angular momentum around the origin has a magnitude of:
A. 0
B. 6.0 kg · m2/s
C. 9.0 kg · m2/s
D. 11 kg · m2/s
E. 14 kg · m2/s