If Zephyr stands on a hilltop with a strong wind blowing from the east, and she is wearing a loose, lightweight skirt, in which direction will her skirt tend to billow if she is facing north?
Provide a very brief response.
Zephyr's skirt will billow towards the west. This occurs because the strong wind coming from the east pushes against her skirt. As the wind has a westerly component relative to the direction she is facing, it will force the material of her skirt to flow outwards and away from the wind's origin, toward the west. Since the wind is not obstructed because she is on a hilltop, the skirt will freely move in the direction the wind is blowing, which is to the west.