Two identical particles form a system. At the instant shown in the figure the particles have equal and opposite momentums: \(\displaystyle p_2=- p_1=p\).

**(Part a)** Determine a vector expression for the angular momentum of the system about the point A.

**(Part b)** Determine a vector expression for the angular momentum of the system about the point B.

**(Part c)** How do your results for angular momentum about A and B compare?