• This forum is strictly intended to be used by members of the VS Battles wiki. Please only register if you have an autoconfirmed account there, as otherwise your registration will be rejected. If you have already registered once, do not do so again, and contact Antvasima if you encounter any problems.

    For instructions regarding the exact procedure to sign up to this forum, please click here.
  • We need Patreon donations for this forum to have all of its running costs financially secured.

    Community members who help us out will receive badges that give them several different benefits, including the removal of all advertisements in this forum, but donations from non-members are also extremely appreciated.

    Please click here for further information, or here to directly visit our Patreon donations page.
  • Please click here for information about a large petition to help children in need.

JUJUTSU KAISEN SPEED DOWNGRADE CONT.

Status
Not open for further replies.
If it slowed down after the boom then the blood spurt is no longer Speed of sound. You will have to find the slowed-down speed of the blood spurt akin to bullet drop velocity or else the entire calc is now invalid.
 
For perceptions?
Yeah

Basically the argument is if the perception feat is
A. The distance the attack moved / Sound
B. The distance the attack will move / Sound

If it slowed down after the boom then the blood spurt is no longer Speed of sound. You will have to find the slowed-down speed of the blood spurt akin to bullet drop velocity or else the entire calc is now invalid.
Nononononononono I'm referring to distance
Specifically only distance.

unknown.png


Which would you use for an equation about perception

Formula for perception is

Distance / Speed = Perception Timeframe

Speed would be 343 m/s

What would be the distance used for the equation.
The green line or the cyan line.

I'm saying it's the cyan one. They're saying it's the blue one.
 
If it slowed down after the boom then the blood spurt is no longer Speed of sound. You will have to find the slowed-down speed of the blood spurt akin to bullet drop velocity or else the entire calc is now invalid.
Fd is the drag force (units of Newton or lbf)

row.tiff
is the density of the fluid (kg/m3 or lbm/ft3)


v is the velocity of the object (m/s or ft/s)

Cd is the drag coefficient (dimensionless)

A is the cross sectional area of the projectile (m2 or ft2)


Since F=ma we can divide the drag force by the arrow mass (kg or lbm) to get the drag deceleration of the arrow (d)
where d is used instead of a to differentiate between acceleration from the bow and deceleration due to drag (d has units of m/s2 or ft/s2).


 
Fd is the drag force (units of Newton or lbf)

row.tiff
is the density of the fluid (kg/m3 or lbm/ft3)


v is the velocity of the object (m/s or ft/s)

Cd is the drag coefficient (dimensionless)

A is the cross sectional area of the projectile (m2 or ft2)


Since F=ma we can divide the drag force by the arrow mass (kg or lbm) to get the drag deceleration of the arrow (d)
where d is used instead of a to differentiate between acceleration from the bow and deceleration due to drag (d has units of m/s2 or ft/s2).


You posted just about everything you'd need to get the speed, why not just post the speed at that point.
 
Fd is the drag force (units of Newton or lbf)

row.tiff
is the density of the fluid (kg/m3 or lbm/ft3)


v is the velocity of the object (m/s or ft/s)

Cd is the drag coefficient (dimensionless)

A is the cross sectional area of the projectile (m2 or ft2)


Since F=ma we can divide the drag force by the arrow mass (kg or lbm) to get the drag deceleration of the arrow (d)
where d is used instead of a to differentiate between acceleration from the bow and deceleration due to drag (d has units of m/s2 or ft/s2).


Bruh, just calc the speed at this point then, see what ya get.
 
Yeah

Basically the argument is if the perception feat is
A. The distance the attack moved / Sound
B. The distance the attack will move / Sound


Nononononononono I'm referring to distance
Specifically only distance.

unknown.png


Which would you use for an equation about perception

Formula for perception is

Distance / Speed = Perception Timeframe

Speed would be 343 m/s

What would be the distance used for the equation.
The green line or the cyan line.

I'm saying it's the cyan one. They're saying it's the blue one.
Green. It's always the green line.

So yeah, find out how much the spurt has slowed up until that point using the above drag coefficient formula (Assuming that green line is where the character starts to move), then use the Projectile Dodging formula. IDK why you even bothered with timeframe here to begin with here. That's perception timeframe and really can't apply to Reactions or Combat Speed anymore (Both Reactions and Combat Speed need a distance component to work with now, like your typical projectile dodging calc).

There's a reason we don't use "total distance the attack moved" for stuff like this unless the guy dodging it is like, super ******* close to the gun barrel (Like, less than 15 cm away or even less from the muzzle or some shit). Velocity of a projectile doesn't just magically drop in melee fighting range.
 
Green. It's always the green line.

So yeah, find out how much the spurt has slowed up until that point using the above drag coefficient formula, then use the Projectile Dodging formula. IDK why you even bothered with timeframe here to begin with here.
Because they're not calcing dodging it. At all.
They're calcing his perception timeframe, which is the sole issue, which has an end result of seconds.

The issue is that in other threads, I tried it and it got declined because it was supposed to be the timeframe the technique moves before the purple dude reacts.

Basically, it's the distance that the attack moves until the person starts to react, because that will give the timeframe of their perception speed.
 
Because they're not calcing dodging it. At all.
They're calcing his perception timeframe, which is the sole issue, which has an end result of seconds.

The issue is that in other threads, I tried it and it got declined because it was supposed to be the timeframe the technique moves before the purple dude reacts.

Basically, it's the distance that the attack moves until the person starts to react, because that will give the timeframe of their perception speed.
In any case, it'd still be the green line, but this time you should actually compensate for the drag that slows down the blood spurt and find the slowed-down speed.

Y'all made a mountain out of a molehill for no reason if what you say is really what happened here.
 
In any case, it'd still be the green line, but this time you should actually compensate for the drag that slows down the blood spurt and find the slowed-down speed.
That's very... weird. Why would the green line be the one for perception? I understand for dodging but for perception it makes no sense.

Shouldn't you use the distance the attack moved until the person finally starts to react... instead of the distance that the attack will cover?
 
That's very... weird. Why would the green line be the one for perception? I understand for dodging but for perception it makes no sense.

Shouldn't you use the distance the attack moved until the person finally starts to react... instead of the distance that the attack will cover?
No, again, velocity drop is a thing. In this case anyway.

The thing is slowing down, it is no longer at its original 343 m/s speed anymore. You will need the slowed down speed at the exact moment the character starts to finally react against it, assuming the character didn't even see the attack originate from the source and only saw it at the last moment mere inches from their face.
 
You will need the slowed down speed at the exact moment the character starts to finally react against it, assuming the character didn't even see the attack originate from the source and only saw it at the last moment mere inches from their face.
The slowed down part can be handled with the calculation of the drag force and such
The issue isn't the speed, it's the distance. The distance is the largest issue.
You mentioned something crucial.

Assuming the character didn't even see the attack originate from the source and only saw it at the last moment mere inches from their face.
What if they saw the attack originate from the source but they managed to start reacting after it covered, say, 19.5 meters.

Let's say Person A and Person B are 20 meters apart.
Person A watched Person B shoot an arrow.
A watched B dock and shoot the arrow.
The arrow was so fast that A only started to try to dodge after B's arrow covered 19.5 meters.

For perception alone, would you say that you calc the remaining distance (0.5 meter), or the distance it covered before A could start to react.

The logic behind it is this.

If the arrow moved at SOL, you'd say this.

For the 19.5 meters
19.5 / 299792458 = 6.50449986e-8

For the 0.5 meters.
0.5 / 299792458 = 1.66782048e-9

19.5 is Sub-Rel+ (0.051282 c)
0.5 is FTL (2 c)

Does it make more sense for someone to have higher reaction speed than the attack that they couldn't react to until it covered 19.5 meters?
 
What if they saw the attack originate from the source but they managed to start reacting after it covered, say, 19.5 meters.
Well then, in that case you can just use the full distance travelled by the projectile if they truly perceived it from start to finish.
 
Well then, in that case you can just use the full distance travelled by the projectile if they truly perceived it from start to finish.
THANK YOU

The issue with the calc (Yuji's specifically) is that Yuji watched Piercing Blood get fired, but it was so fast that he only started reacting after it covered a large distance (the 19.5 meters in my example).

But instead of accounting for the large distance, they only accounted for the distance it didn't cover yet (the 0.5 meters in my example), then divided that by Mach 1 for his reactions
 
Well then, in that case you can just use the full distance travelled by the projectile if they truly perceived it from start to finish.
That's not the case here for one of the instances.

Persona A fires a technique person B doesn't know is coming. Person B is caught off guard by the speed and remarks how fast the speed is. Thus his reaction should be based on his movement given the distance between himself and the projectile correct?
 
That's not the case here for one of the instances.

Persona A fires a technique person B doesn't know is coming. Person B is caught off guard by the speed and remarks how fast the speed is. Thus his reaction should be based on his movement given the distance between himself and the projectile correct?
This is a whole different scenario

The fact that Uraume's hands were up means that he started reacting prior.

And regardless it'd still be the distance it covered.

And with your logic the attack being that close would still give them reactions dozens of times superior to the speed of the projectile, which makes very little sense.

You're confusing reaction speed with reactions. Reactions (the timeframe) is pretty much perception speed on this wiki, and you using the distance between Uraume and the blood isn't doing that, instead you're doing a whole different unorthodox mechanic.

The distance the blood traveled that Uraume watched is what counts, not the distance that hasn't even been covered yet.
 
If dude didn't see the attack coming at all, noticed it after it already cleared a point. You wouldn't use the full distance, only the distance after he noticed it (If for example, he was facing the other way, turned around, went oh shit and it was already coming and cleared distance, you wouldn't use the full distance there).

But if he was looking at it being fired, saw it being fired, and could only barely react after it cleared that distance, you'd use the total distance the thing covered if he was looking where it would be and where it was coming from the whole time from start to finish.

If 1, you do green line. If 2. Red line.

Idk why there's argument over this.
 
Even with green line, it'd never be something you use.

Because with green line, it would be a distance that you haven't reacted to yet.

It would solely be cyan line or parts (possibly small parts) of cyan line, but the green line is just the distance between you and the projectile, not any distance that the projectile has already covered
 
If dude didn't see the attack coming at all, noticed it after it already cleared a point. You wouldn't use the full distance, only the distance after he noticed it (If for example, he was facing the other way, turned around, went oh shit and it was already coming and cleared distance, you wouldn't use the full distance there).

But if he was looking at it being fired, saw it being fired, and could only barely react after it cleared that distance, you'd use the total distance the thing covered if he was looking where it would be and where it was coming from the whole time from start to finish.

If 1, you do green line. If 2. Red line.

Idk why there's argument over this.
It's jujutsu kaisen. don't try to understand
But yeah Uraume prepares for the attack and sees it, he's not like surprised or caught off guard by it.
 
Well if he was watching it the whole time from being fired to the point he sees it and only after 19m he went oh shit, you'd use that 19m.
 
Regardless

Yuji saw Piercing Blood get fired, so the initial distance to the final distance (the hypothetical 19.5 m) is what you use.

If he just looked up and saw it 0.5 m away, then you'd use whatever distance it covers after you first see it (could be 0.1 or something).

Uraume saw Piercing Blood for a while and already had his hands up by the time it got close, screaming that for perception alone you'd use the distance he first saw it at.

The point is that using the distance between the projectile and the person is wrong, and you only use the distance the projectile moved from when they first see the attack to when they first react to the attack.

AKA, the Yuji and new Uraume calcs are wrong.
 
Update

Here's every calc that has been flooped this thread

Quite literally don't use this method, whoever does needs to get kneed for it

Has been proven that the timeframe is folly, by the time the first frame is there the tree has already risen or we can't even tell when it's rising

Find which one is the best so we have a solid one via CGM thread

His body's not straight. We can use my calc and substitute the speed, and worse case scenario use speed of electricity

Reaction timeframe is wrong, it's 0.2, and it didn't cover that large distance before Maki could react, it was a lesser distance

Methods are bad, wrong, and got a CGM to assist on why

So how many calcs is there that aren't folly that assist the supersonic JJK non speed god tiers meta?
 
Status
Not open for further replies.
Back
Top