>>718502561
It is probably a mix of
E=mc2 and F=ma
But let's pretend it is something
mass times acceleration gives you the force of something
If you square the acceleration you will get an unrealistic description of the force being applied
Maybe it is a nod to how these horsegirls run way faster than any human eve did
The fastest ANY human ever managed to run was 44.72km/h, meanwhile these girls can do the last 200m of any race in less than 4s. so 50m/s or around 180km/h. The force they are pushing onto their human shaped feet is way, WAAAAY greater than any real human can do. In fact I doubt that even if their feet could take such stupid OP force, that it would even translate to the speed IF they weigh as much as normal girls do. There is just not enough surface area and grip to make them accelerate and run as fast as they are, nor the human feet can take and transmit the force they have to exert to get to those speed to the ground.
So maybe, just maybe U is the secret unit that makes all this crazy animehorsegirl shit work