Answer:
J. Their momentum is conserved
Step-by-step explanation:
According to the diagram, the best statement that describes what happens when two astronauts collides in space is that their momentum is conserved.
The momentum before collision is 320kgkm/hr and after collision it is 320kgm/s
This collision is an inelastic collision;
momentum before = momentum after
m₁v₁ + m₂v₂ = v(m₁ + m₂)
m₁ = 80kg
v₁ = 4km/hr
m₂ = 80kg
v₂ = 0
v = 2km/hr
Insert the parameters;
(80 x 4) + (80 x 0) = 2(80 + 80)
320 = 320