Early Jet

Could a pilot break the sound barrier at 1620km in 5 seconds?

Early jet pilots were obsessed with breaking the sound barrier, the speed of sound. The pilot would need to reach exceed the speed of sound, 340 km/s. If a jet pilot traveled 1620km in 5 seconds, would the pilot break the sound barrier?
Early jet pilots were obsessed with breaking the sound barrier, the speed of sound. The pilot would need to reach exceed the speed of sound, 340 km/s. If a jet pilot traveled 1620km in 5 seconds, would the pilot break the sound barrier?

How would this be proven wit hthe average speed formula?

You're asking a math problem. What you want is the instantaneous value of speed. How you measure that is virtually immaterial. If it goes 763 mph at sea level on the defined standard day, it passes through the sonic barrier. It wasn't just jet pilots, by the way. P-51 and Hellcat pilots exceeded mach 1 in dives during WW II. Not often, but it happened, usually when the enemy was shooting at them.

Late note: It is amazing to me the lack of understanding of "G" forces. For the gentlman whose answer is below mine, I would point out that there is virtually no g force involved in penetration of the sound barrier. Assuming straight and level flight during penetration, the only force felt would be acceleration, very mild indeed. Having personally flown well in excess of mach 2.5 on many occasions, I can assure you this is true.

Caproni Campini N1 1940 early jet aircraft