Respuesta :
Answer:
 L = 5076.5 kg m² / s
Explanation:
The angular momentum of a particle is given by
     L = r xp
     L = r m v sin θ
the bold are vectors, where the angle is between the position vector and the velocity, in this case it is 90º therefore the sine is 1
as we have two bodies
    L = 2 r m v
let's find the distance from the center of mass, let's place a reference frame on one of the masses
    [tex]x_{cm}[/tex] = [tex]\frac{1}{M} \sum x_{i} m_{i}[/tex]i
    x_{cm} = [tex]\frac{1}{m+m} ( 0 + l m)[/tex]
    x_{cm} = [tex]\frac{1}{2m} lm[/tex]
    x_{cm} = [tex]\frac{1}{2}[/tex]
    x_{cm} = 13.1 / 2 = 6.05 m
let's calculate
     L = 2  6.05  74.3  5.65
     L = 5076.5 kg m² / s
