Totally lost me. I get for the formula you're just plugging in mass and velocity, but that's the confusion. Is he using the combined mass of every person dead or alive as they were all 70kg? Or the human itself is 70kg. Then I also don't understand why he uses AP to get the speed and such, especially when he uses the arm weight for combat speed.

Also idk why you're using that formula solving for alpha . That confused me 100x more.

c) "In this case, if we use a relativistic system, and use 70 kgs as the mass of the human, assume all humans are high end athelte level in AP and use tthe relativistic kinetic energy formula , we get the speed as 2.613787e-3 c or about 783,593.6555 m/s which is approximately 2265 mach."

b) No, α is the constant that multiply the KE. Do this, calculate KE normally, then multiply the result per α, that is the first equation that I posted.

c) I think it was a typo, he was refering to Athlete human speed, not AP, he then calculate AP. Of how did he find that speed or what mass is he using, is unknown for me.

That formula is applicable to any speed below c, but at 0.14c it will increase the mass at 1%, anything below it also will increase, but is negligible and isn't necesary at all.

The rest mass I used was the mass of a limb or something. I added up the AP of all humans. Thats is the total energy, and used the rest mass and plugged it all in the relativistic KE equation to find the estimated speed needed for that given mass. TBH, in this case, I could have just used the newtonian equation because relativistic effects didnt have a massive impact.

That was for the combat speed I assume? In which case the same could be applied to the whole body? And I've been out of touch with math for a while, I know I have to plug in the KE and mass since we have those, but I forgot how to solve for V.

But using the normal formula V = KE / (1/2 * M)

With high end athlete AP being 200j x the number of everyone who ever lived we get

21520541558200j

Plugging that in I got 3383805.819487245 m/s which is mach 9943.59, which is only around 7 mach higher than what you got, probably because your value for kg was 3.756, whereas mine is 3.759.

nope, that is not the only reason, you used the newtonian formula, which doesnt account for relativistic effects, meanwhile I used the relativistic formula- both this and the minor mass differencs can account for the difference.

But idk how to use the relativistic formula, you're supposed to put in mass and velocity to solve for the joules, but I don't remember how to solve for velocity when we have the joules and mass.

We aren't allowed to calculate speed from AP, but if you want ot, just clear the from the equation from above; it would take you more work to clean if you use α.

Can you use that formula so I can understand it by watching? And if we aren't allowed to find speed through KE, how do you quantify the speed of the combination of every human ever?

Unite My Rice wrote: Can you use that formula so I can understand it by watching? And if we aren't allowed to find speed through KE, how do you quantify the speed of the combination of every human ever?

we are talking about real life here, or at least a complete physical model. The combined human is supposed to have an AP which is the sum of Aps of all human being = number of human being x AP of human, in this case you can pick 200J to be on a relatively higher end.

unfortunately default typing settings are irritating to deal with. If I had a mathematical typing template, I could show it more properly, but let me make it short and sweet.

You see that whole 1/ sqrt(1 -v^2/c^2) thing? leave it be for now- it is called a lorentz factor.

in our case, KE/mc^2 +1 = that lorentz factor.

Now it shud be easier for you to solve from here onwards

As I said it was simply for finding velocity, and as for its usability- no the only reason we used it is because it is a theoretical model for a physics based system, iirc this is not allowed for most if not all fictional feats

As for running speed- use the whole body instead of the mass of a limb

Unite My Rice wrote: Wtf, so how would you calc that???????????????????????

I dont think there is a clear cut way to do so tbh. Though for the AP, if the absorption is said to add up the powers, then you can add individual APs to get the new one.

So there's no clear way to do it, yet the only viable way isn't allowed. I read that if the results are out of the norm of the character than it won't be accepted so idk.

I attempted to make a crossover to Fate series and created Servant card for him,but to my surprise,was considered as stomp,and seems especially unfair for Lancer.

As seriously considered all his experience and possible items he has,this "ordinary student in university" seems far more stronger than expected.

Yeah looks like it, hmm for a low end, why not just use terminal velocity x time to find the height?

And iirc shunpo is supposed to be faster than the eye can follow, a speed which tends to vary greatly based on various factors. Also, IDK if shunpo can be used that long, if anything I only remember it being used for short periods of time. So, maybe terminal velocity going constantly for a week could cover as much if not comparable distance to using shunpo in short durations, then needing to rest and start moving fast again; at least for a low end estimate. I know it would be a very low ball, but that is one way to find the height.

Hello, as you may or may not know, there's an upcoming revision and I would appreciate it if you could please leave your input on whether you are free to help out or not.

So, as we discussed yesterday. assuming the crater was hemispherical (So equal depth to radius), and the mass and density of the metal making the halo, is it possible to find the minimum depth of the crater based on the fact it was deep enough that it caused the halo to bend and warp on itself?

Hmm that would be a bit tricky to do so, since we would need to use the properties of the metal to find the minimum required deformation for external forces to change the overall structure.

The Living Tribunal1 wrote: Hmm that would be a bit tricky to do so, since we would need to use the properties of the metal to find the minimum required deformation for external forces to change the overall structure.

Assuming it is like Tungsten sans its melting point, what values would I need?

The Living Tribunal1 wrote: Hmm that would be a bit tricky to do so, since we would need to use the properties of the metal to find the minimum required deformation for external forces to change the overall structure.

Assuming it is like Tungsten sans its melting point, what values would I need?

You will need the tensile strength and a bunch of other ones if you want deformation, but tbh, I think the simlest route will be to say that the lasers are much stronger than large country/ small continental level