Six members of a synchronized swim team wear earplugs to protect themselves against water pressure at depths, but they can still hear the music and perform the combinations in the water perfectly. One day, they were asked to leave the pool so the dive team could practice a few dives, and they tried to practice on a mat, but seemed to have a lot more difficulty. Why might this be?
The speed of sound in water is around 1400m/s whereas the speed of sound in air is. The sound travels at faster speed in water and it aids in hearing of the music. The swim team therefore finds it easy to perform their routine underwater than outside on mat.