Here's another view of the shootdown from the ground with no zoom.
View: https://www.youtube.com/watch?v=CeZSz2R106E
The speed of sound is 1086.9 ft/sec at 0* Celsius or 32* Fahrenheit.
Is it possible to find the speed of sound in fps? Yes, it is possible, because fps is nothing but the unit but not a SI unit if the speed of sound. This
countspeed.com
The speed of sound in fps at sea level is 1100 feet per second, and the speed of sound in air fps is 1125 feet per second. Also, the speed of sound varies with the elevation, such as the speed of sound in fps at 2000 ft is 1089.23 feet per second, and the speed of sound in fps at 5000 ft is 1016.13. It is because the higher altitude has a lower air temperature and therefore slower speed of sound.
Going with the very cold temperature this past Saturday, this formula works out to:
60,000 ft x (1 sec/1087 ft) = 55.2 sec for the time it would take the sound of the Sidewinder detonation to reach the ground after impact.
I count about 6 seconds after the Sidewinder engine shuts off normally and you hear the bang on the ground. That would seem to indicate an actual altitude of 6-10,000 feet. A few people commented on this on some of the videos but I never worked it out until now. I would think about 1,000 ft/sec would be correct for the environmental conditions on Saturday.
As a point of reference, the speed of sound in liquid water at 46* F is a lot faster at 4,271 ft/sec.
Speed of sound, speed at which sound waves propagate through different materials.
www.britannica.com
The normal cruising altitude for a jetliner, which is much larger than an F-22, is 20,000 feet. That's where you see contrails a good bit of the time.
Realistically, neither the balloon or the F-22 would really be visible to the naked eye on the ground even on a clear day like Saturday. You would need a high-powered zoom lens like NASA used for the shuttle launches to see something that high up.
Somebody's not really telling the truth here.