Introduction[]
- Hifumi activates Iron Body and launches the Cut-All Blade towards the snail-shaped Ghost.
- The Ghost catches the sword between its palms and disappears.
Calculations[]
- Cut-All Blade Length = 529.25 px | 38 cm
- Distance Between Ghost and Cut-All Blade = 165.48 px | 0.118814171 m
- Ghost Arm Length = 856.69 px | 61.5100992 cm
The structure of the pages and the Ghost's initial surprise implies the sword was launched at superhuman speeds, slicing through the panel and through the water and reaching the Ghost in-between the two panels.
For a conservative estimate, 0.2 sec, which is Average Human perception timing.
Now, referring to a previous calculation,
The angle sizing formula is "2atan(tan(70deg/2)*[object size in pixels/panel height in pixels]".
2atan(tan(70deg/2)*[169/1018] = 13.2609177 deg
The distance between Hifumi and the Ghost is 15.248 m.
15.248 m / 0.2 sec = 76.24 m/s
Alternatively, for a low-end, the formula for the horizontal velocity of a thrown projectile is "sqrt(R*g/(sin(2*a)))", in which R is the distance thrown, g is the gravitational acceleration (9.81 m/s^2), and a is the angle between the ground and the direction the projectile is launched in (approx. 45°).
sqrt(15.248 m*(9.81 m/s^2)/(sin(2*45 deg))) = 12.230408 m/s
The length of its arm is the distance the Ghost traveled in blocking the blade, and the Ghost has two arms.
61.5100992 cm * 2 = 1.23020198 m
As for the timeframe in which the Ghost traveled,
0.118814171 m / 76.24 m/s = 0.00155842302 sec
0.118814171 m / 12.230408 m/s = 0.0097146531 sec
First, speed,
1.23020198 m / 0.00155842302 sec = 789.388994 m/s
1.23020198 m / 0.0097146531 sec = 126.63365 m/s
Then, kinetic energy,
(1/2) * 84 g * (789.388994 m/s)^2 = 26171.6693 joules
(1/2) * 84 g * (126.63365 m/s)^2 = 673.515415 joules
Finally, for force, the work formula ("force x distance") can be inverted ("energy / distance") (in newtons).
To launch the sword, Hifumi flung his arm over his head over an arc of 180°.
The formula for arc lengths (in m) is "d * a / 180 * pi", in which d is arc segment (in m), and a is the angle (in °).
The avg. male arm length is 76.74 cm.
0.7674 m * pi = 2.4108582 m
26171.6693 joules / 2.4108582 m = 10855.7481 newtons
673.515415 joules / 2.4108582 m = 279.367495 newtons
Results[]
- Ghost's Reaction Speed =
- Mach 2.30142564 (Supersonic)
- 126.63365 m/s (Subsonic)
- Iron Body Hifumi's Attack Potency =
- 26.1716693 kilojoules (Wall level) [High-End]
- 673.515415 joules (Street level) [Low-End]
- Iron Body Hifumi's Lifting Strength =
- 1106.60021 kg (Class 1) [High-End]
- 28.4778282 kg (Below Average Human, lol.) [Low-End]