In this video, we compare the speeds of different missiles. We will look at the Mach speed of each missile, as well as the countries that produced them. We have a 150 km distance, and we will see how many seconds does each missile need to cross that distance. Just a short definition for anyone who doesn't know what a Mach speed is. Mach speed is the speed of an object relative to the speed of sound. For example, a missile that is traveling at Mach 2 is traveling twice as fast as the speed of sou