Step-by-step explanation:
Formula to calculate the angular momentum is as follows.
L = mvr
where, m = 65.5 kg
v = 5.13 m/s
r = 12 m
Therefore, calculate the angular momentum as follows.
L = mvr
=
= 4032.18
Therefore, we can conclude that the magnitude of the initial angular momentum of the system by treating the astronauts as particles is 4032.18
.