What Is the Speed of Sound in Fps?

What Is the Speed of Sound in Fps?

What Is the Speed of Sound in Fps?

The speed of sound, known as Mach 1, varies depending on the medium through which a sound wave propagates. In dry, sea level air that is around 25 degrees Celsius, Mach 1 is equal to 340.29 meters per second, or 1,122.96 feet per second.

Mach 1 rises with the density of the medium. In 25-degree Celsius fresh water, sound propagates at 4,940.1 feet per second. In sea water Mach 1 is equal to 5,148 feet per second, or nearly 3,600 miles per hour. In air the speed of sound is a function of temperature only. Though supersonic aircraft measure speed as a function of external air pressure, this is only an approximate method caused by technical limitations.