Yes, a bullet traveling faster than the speed of sound does make a sound. However, the sound it produces is different from the typical "crack" or sonic boom associated with objects breaking the sound barrier.
When a bullet travels faster than the speed of sound (approximately 343 meters per second in air at room temperature), it creates a shock wave called a "sonic boom." This sonic boom is a continuous shock wave generated by the bullet as it moves through the air faster than sound can propagate in front of it. However, this shock wave is usually not audible because it is directed away from the observer.
What you actually hear when a supersonic bullet passes by is a combination of sounds. First, there's the sound of the bullet's muzzle blast or the sound generated by the firing of the gun. This sound travels at the speed of sound and reaches your ears before the bullet itself. Then, as the bullet moves through the air, it creates disturbances and turbulence in its wake. These disturbances can produce additional sounds, often described as a "crack" or a "whizzing" noise. These sounds are generated by the bullet's interaction with the air and are audible to the observer.
It's important to note that the sound of a supersonic bullet depends on various factors, including the bullet's speed, shape, and the atmospheric conditions. Additionally, if the bullet is fired at a distance, the sound it produces might be more influenced by other factors like wind, obstacles, and the environment.
In summary, while a bullet traveling faster than the speed of sound doesn't produce a sonic boom audible to the observer, it still creates sounds due to the muzzle blast and disturbances it generates as it moves through the air.