An astronaut on a spacewalk pushes off of the outside of the spaceship. Compare the force of the astronaut on the ship to the force of the ship on the astronaut. Compare the astronaut's change in momentum to the spaceship's change in momentum. Compare the astronaut's change in velocity to the spaceship's change in velocity.
Just checking my answer
Both the force of the astronaut on the ship to the force of the ship on the astronaut are the same.
Both the astronaut's change in momentum and the ships change in momentum are the same.
The astronaut has a larger change of velocity.