Humans are not capable of running that fast, no, but they can travel that fast using a vehicle. The current air speed record is Mach 6.7.
Mach 3 = 2283.6211 mph
They don't go anywhere, they are no longer in use by the Air Force. What a goofy answer... An SR 71 Blackbird can travel over Mach 3 (3 times the speed of sound). Mach speed varies a bit by air density but it is roughly 742mph. This means that at Mach 3 the Blackbird is traveling at about 2225mph. This is literally faster than some bullet speeds (30.06 for example), and is faster than the earth's rotation (you could leave New York and fly to Hawaii and get there earlier than you left New York).
Different fighter planes have different capabilities, but somewhere between Mach 1 (the speed of sound) and Mach 3 (three times the speed of sound) has been the general norm for fighter planes in the last five decades. Fighter-bombers are capable of supersonic speeds above Mach 1, but fighter-interceptors can do about Mach 2.5.
It varies. Normal commercial airplanes travel at approx 500 km/hr. The fastest ones can reach Mach 3-4.
The mach number is the speed, compared to the speed of sound in air. Thus, mach 1 is the speed of sound, mach 2 is twice (2 times) the speed of sound, mach 3 is 3 times the speed of sound, etc.
Mach 3 is 2283.6211 mph because Mach 1 equals 761.207033 mph.
Air force jets can range in speed from sub-sonic ( below the speed of sound ) to speeds of mach 2 ( twice the speed of sound ) some can even reach mach 3 the average military fighter jets average speeds of mach 1.2
There is no finite answer to this, since the term Mach (the speed of sound through air or water) changes based on the temperature of the air itself. In 60 deg F air at sea level, Mach 1 is 761mph. In dry air at 68 deg F, mach 1 is 768 mph. Mach 1.4 is 1.4 x these speeds. Usually Mach speeds are used for objects travelling in air, but not always. Mach 1 in water is 4.3 times faster than air and Mach 1 in iron is 15 times faster than air.
Mach 3.6 = 2,740.34 mph
That's about mach 10, fast enough to go around the earth in 3 hours.
Mach 3 - 2012 was released on: USA: April 2012
The Concorde aircraft cruised at Mach 2 at about 19,000 m (62,000 ft), and the SR-71 cruised at Mach 3 at 26,000 m (85,000 ft), all within the stratosphere.