Two atoms collide while moving in a dilute gas. The larger atom has a mass M₁ = 6 Daltons and a speed v₁ = 200 m/s, while the smaller has a mass M₂ = 1 Daltons. During the collision both atoms simply bounce off each other. They do not change their speeds, but after the collision they each change their directions, bouncing in the indicated directions. Gravity can be ignored during the collision.

A. What is the direction of the change in the momentum of the smaller atom? Use the letters from the compass rose below the figure to specify directions.

B. Which of the following statements are true about the momenta of the two atoms?

1. The change in the momentum of M₂ has the same magnitude as the change in momentum of M₁.
2. The total change in the momentum of M₁ and M₂ must be zero.
3. The total momentum of M₁ and M₂ must be 0.
4. Because the angles are not the same, the collision cannot take place as described.

C. What is the magnitude of the change in momentum of M₂?