The base formula is =
g *
m *
k *
s (see above the comment of Nik to see what does every letter correspond to)
Okay so the average gravity pressure on earth is about
9.80 m/s 2.
So we have :
9.80 *
m *
k *
s
We know Mob weight 44.3 kg (so 97,6 lbs) + the weight of Koyama, this one is hard as we don't have any proper measure.
However when comparing him to Ritsu :
5 seconds · Clipped by aurelien legendaire · Original video "Mob vs Koyama Full Fight (60fps)" by The Art Of Animation
youtube.com
He seems to be at least on head taller possibly two.
Height of Ritsu : 159 cm (or roughly 5'2)
159 (cm) + average human head height 24 cm (9.4 inches) This is the low end, 1 head taller.
159 (cm) + average human head x1,5 height 36 cm (14 inches) This is the mid end, 1 head and a half taller.
159 (cm) + average human head x2 height 48 cm (18.9 inches) This is the high end, 2 heads taller.
I say we go for the mid end, so 159 cm (5'2 in feet) + 36 cm (14 inches) so around 195 cm (or 6'5 in feet)
The average ideal weight for a grown (25 to 30 years old man) with a muscular physique like Koyama's should be at least 100 kg (so roughly 220 lbs)
so we have the weight of Shigeo : 44.3 kg (97,6 lbs) + the speculated weight of Koyama : 100 kg (220 lbs).
M=
144.3 kg (317.6 lbs)
9.80 *
144.3 *
k *
s
I'll be honest, I have no idea on how to find the coefficient of friction but i'm gonna assume you mean the friction of concrete.
The friction for concrete cast on steel plate with a dry interface is
0.57.
I think this value is accurate since the type concrete shown during the feat seems to match with the one mentioned prior :
Sooo we have now :
9.80 *
144.3 *
0.57 *
s
The last thing we need is the distance travelled, the problem being I have trouble estimating the altitude at which Mob start rising : https://youtuhttps://youtu.be/nJlmcQA_dVQ?t=209 Then falling :
I'm gonna estimate the height of the building affected by the slam.
So we can see it seems to be at least 9 stories tall and we can't even see the damage done by Mob slam's thus I estimate it to be 10 to 12 stories tall :
I take a mid-end of 11 storey ( around
33.5 meters or 110 feet) which we use for the distance travelled known as
s
The final formula is :
9.80 *
144.3 *
0.57 *
33.5 =
27 000.03
I'm not sure how to quantify the final result nor even if this whole calculation is accurate.
But I do now that I need to go to bed 'cause after all that mental effort : brain hurty.