Introduction[]
So this is an attempt to calc a so-called "common feat." There's a method involving calculating the speed of someone when a reference object is viewed as standing still, so I'mma calc that for a bunch of different, yet common projectiles used for speed feats.
For reference, this uses the speed of a snail (0.013 m/s) and the average human running speed (6.35 m/s). The equation is as follows:
Person's Speed = (Object's Speed / Object's Apparent Speed) * Person's Apparent Speed
Viewing a Bullet as Standing Still[]
This one's gonna be done with different weapons: black powder muskets (370 m/s) and modern rifles (1200 m/s).
Speed to View a Musket as Standing Still = (370 / 0.013) * 6.35 = 180730.77 m/s; Mach 526.91 (Massively Hypersonic)
Speed to View a Rifle as Standing Still = (1200 / 0.013) * 6.35 = 586153.85 m/s; Mach 1708.9 (Massively Hypersonic+)
Viewing Lightning as Standing Still[]
Speed of Lightning = 440000 m/s
Speed to View Lightning as Standing Still = (440000 / 0.013) * 6.35 = 214923076.92 m/s; 0.72c (Relativistic+)
Viewing Light as Standing Still[]
Speed of Light = 299792458 m/s
Speed to View Light as Standing Still = (299792458 / 0.013) * 6.35 = 146437085254 m/s; 488.46c (Massively FTL)
Final Results[]
Viewing Things as Standing Still:
Musket = 180730.77 m/s; Mach 526.91 (Massively Hypersonic)
Rifle = 586153.85 m/s; Mach 1708.9 (Massively Hypersonic+)
Lightning = 214923076.92 m/s; 0.72c (Relativistic+)
Light = 146437085254 m/s; 488.46c (Massively FTL)
In conclusion, seeing things as standing still is fucking broken.