Here's why:
* Sound travels faster in denser mediums: The speed of sound is determined by the medium it travels through. Denser mediums have molecules packed closer together, allowing sound vibrations to transfer more quickly.
* Ground is denser than air: The ground, whether it's soil, rock, or concrete, is much denser than air. This means the molecules in the ground are packed much closer together.
Therefore, when a sound wave transitions from air to the ground, it encounters a denser medium, causing the sound to travel faster.
The exact speed increase will vary depending on the type of ground, but it's generally a significant increase.
