Final answer:
Two weeks after the vernal equinox, the sun will set slightly north of west in the Northern Hemisphere and slightly south of west in the Southern Hemisphere due to Earth's tilt and orbit.
Step-by-step explanation:
On the vernal equinox, the sun sets directly west for all locations on Earth, but two weeks later the position of sunset will have slightly shifted.
After the equinox, as the Earth continues in its orbit around the sun, the position of sunset (and sunrise) appears to move progressively northward (in the Northern Hemisphere) or southward (in the Southern Hemisphere) along the horizon due to the tilt of Earth's axis. Therefore, two weeks after the vernal equinox, the sun will set slightly north of west in the Northern Hemisphere and slightly south of west in the Southern Hemisphere.