A group of students completed the “Newton’s Laws and the Interaction of Objects” activity on pages 260 and 261 of the textbook. They wrote the following statements to describe the separating vehicles: I. The magnitudes of the forces on both vehicles were the same. II. The magnitudes of the acceleration of both vehicles were the same. III. The magnitudes of the impulses on both vehicles were the same. IV. The speeds of both vehicles were the same once the spring had spread out.