Final answer:
We cannot determine if the two hot air balloons have the same velocity or different velocities without additional information about their motion.
Step-by-step explanation:
In this scenario, Jaime is flying in a hot air balloon and notices another hot air balloon pass underneath his own. Based on the information given, we cannot determine if the two balloons have the same velocity or different velocities. This is because velocity is a vector quantity that has both magnitude and direction. We would need additional information about the motion of both balloons, such as their speed and direction, to determine their velocities relative to each other.