You must be travelling faster than 299,792,458 m/s = 299,792 km/s = 186,000 miles/s.
The speed of sound is approximately 767 mph at sea level. To break the sound barrier, an object would need to travel faster than this speed, so it would have to be moving faster than 767 mph.
No, helicopter blades do not break the sound barrier. The tips of the blades can approach the speed of sound, but the entire blade does not exceed the speed of sound.
The sound barrier
No, a Cobra helicopter cannot break the sound barrier. The maximum speed of a Cobra helicopter is around 185-190 mph, which is significantly lower than the speed of sound (about 767 mph at sea level).
Light travels at 186,000 miles per second, which means you have to travel faster than that to break the light barrier. This feat is technically "impossible", since the faster you move, the more mass you have and the more mass you have, the more energy is required to move you, and by the time you reach the speed of light, you will need to have infinite energy. This doesn't apply to light particles, since they have no mass.
To break the sound barrier in the Earth's atmosphere, an object must travel at a speed of around 767 mph (1,235 km/h) at sea level. This speed is known as the speed of sound, or Mach 1.
Most modern guns DO fire bullets that break the sound barrier. That is, their bullets travel faster than the speed of sound when they are fired.
No, most bullets however do break the sound barrier, at roughly 1100 fps is the speed of sound. Some of the smaller pistal rounds like the 9mm go about 900 fps to about 1050 fps. So there you have it not all bullets break the sound barrier.
charles yeager
Breaking the sound barrier occurs when an object travels faster than the speed of sound, creating a shockwave. To accomplish this, an object needs to generate enough thrust and acceleration to overcome aerodynamic drag and reach supersonic speeds. Aircraft and some vehicles can be designed to break the sound barrier with specialized engineering and propulsion systems.
He has to travel at more than 760mph.
Mach 1 is the speed at which you break the sound barrier. The speed of sound, or Mach 1, at sea level and under "standard condition" is:1,116.4 ft/s340.3 m/s761.2 mph1,225.1 km/h