Just kidding, it's actually a bullet interception, pranked. (bloody typos)
Requested by Kal, my attempt to do things smart but maybe not.
Arm is 44% of your height so that means her arm is approximately 0.77 meters.
I'll need to pixelscale the sword.
Selvaria = 276 px = 1.75 m
Sword = 250 px = 1.585 m
Ehhhhh, estimate of.... 180 degrees she moved? I think?
((0.77 + 1.585)*pi)/2 = 3.7 meters.
Selvaria = 333 pixels = 1.7 m (cutting off some thanks to her not fully being in the shot)
Distance it had to travel = 101 pixels = 0.51 meters.
According to Kal, a good estimate would be this gun which has a muzzle velocity of 884 m/s
0.51/884 = 0.0005769230769231 seconds
Easy to do now.
3.7/0.0005769230769231 = 6413.3333333330768 m/s or Mach 18, or Hypersonic+
Lower than before, but I need to ask someone to change the title.
Editted Alternate Version
Kal suggested that I could pixelscale her arm.
Selvaria = 254 px = 1.75 m
Arm = 96 px = 0.6614 m
((0.6614+1.585)*pi)/2 = 3.5 meters.
3.5/0.0005769230769231 = Mach 17.6, Hypersonic+
So Hypersonic+ all around.