Yes, objects can reach and exceed the speed of sound under certain conditions. The speed of sound, also known as Mach 1, varies depending on the medium through which the object is traveling. In dry air at sea level and at a temperature of around 20 degrees Celsius (68 degrees Fahrenheit), the speed of sound is approximately 343 meters per second (1,125 feet per second).
When an object moves through a medium, such as air or water, it generates pressure waves known as sound waves. The speed of these sound waves is determined by the properties of the medium, such as density and elasticity.
If an object moves through a medium faster than the speed of sound in that medium, it is said to be traveling at supersonic speeds. When an object exceeds the speed of sound, it creates a shock wave called a sonic boom. This occurs because the object is moving faster than the sound waves it generates, causing the waves to pile up and create a sudden increase in pressure.
It's important to note that the ability of an object to exceed the speed of sound depends on its design, aerodynamics, and the medium it is moving through. Aircraft such as supersonic jets and certain projectiles, like bullets or some high-velocity rockets, are examples of objects that can achieve supersonic speeds.