Final answer:
The rain will appear to fall at an angle going from west to east for the man standing on the ground.
Step-by-step explanation:
When a man is traveling in a train, the raindrops will appear to fall at an angle from west to east to another man standing on the ground.
This is because the man on the ground is at rest and observes the raindrops falling vertically down. However, due to the motion of the train, the raindrops will appear to be slanting in the opposite direction to the man in the train.
Therefore, the rain will appear to fall at an angle going from west to east for the man standing on the ground.
Learn more about rain falling from a moving train