Ice Skating

Average Blink = 0.3 ~ 0.4 Seconds
Aoe is 8,000 Feet

Low Ball Calc:
8000ft per 0.4 sec = 6096 m / s
6096 m /s = 13636.364 mph = 17.773 speed of sound
Final Speed = Hypersonic+

Medium Value:
17.773 + 23.697 = Mach 41.47
Mach 41.47/2 = 20.735 Speed of Sound
Final Speed: Hypersonic+

High Ball Calc:
8000ft per 0.3 sec = 8128 m / s
8128 m / s = 18181.818 mph = 23.697 speed of sound
Final Speed = Hypersonic+