Size and mass of the pillar[]
According to Daizenshuu 7, Tao is 178 cm tall.
Tao: 153.6 px = 1.78 m
Pillar height: 253.6 px = 2.94 m
Pillar width: 33.5 px = 0.3882 m
Volume and Mass[]
The volume of a cylinder is pi * radius2 * height.
The radius of the pillar would be 0.1941 m.
pi * 0.19412 * 2.94 = 0.348 m3
From the shape and coloring of the pillar, it seems to be made of marble. The density of marble is 2711 kg/m3, giving the pillar a mass of 943.43 kg
Velocity of the pillar[]
To get the distance the pillar traveled, I overlaid many frames of the video over each other and mapped its direction with the path tool in GIMP, then measuring it with a handy plugin by someone called Ofnuts. The path summary can be found here.
The distance from the Sacred Land of Karin to the Red Ribbon Army HQ is 2300 km.
RR to Karin = 415.9 px = 2300 km
Tao's path to going off-screen = 419.8 = 2326.6 km
If we watch the full video frame by frame, it takes Tao from frame 809 to 1008 to go off-screen. This gives us a timeframe of 199 frames, or 7.96 seconds.
(2326.6*1000)/7.96 = 292286.432161 m/s or Mach 852 (Massively Hypersonic)
Force and Attack Potency[]
Acceleration[]
Using the length of Tao's arm, which is 77.8 cm.
acceleration = velocity2 / (2 * distance)
292286.4321612 / (2 * 0.778) = 5.4904472e10 m/s2
Force[]
Using the mass of the pillar.
F = m * a
943.43 * 5.4904472e10 = 5.1798526e13 Newtons or 5.28 Gigatons of Force (Class T)
Attack potency[]
Using Kinetic Energy
KE = 0.5*m*v2
0.5*943.43 * 292286.4321612 = 4.02992532e13 Joules or 9.63 Kilotons of TNT (Town level)