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How much force would a 200 lb man generate if he hit the Earth at 99.9% the speed of light?
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Attack Potency, Kinetic Energy And Relativistic Speed
- Thread starter Continuum19
- Start date
Randomlamdom
They/Them- 1,676
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41.6365 gigatons, 6-c
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- #3
What is they weighed 1,400 lbs?
Randomlamdom
They/Them- 1,676
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291.4555 gigatons, high 6-c
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- #5
Thanks.
By the way when I said 99.9% light speed earlier I meant as close to the speed of light as possible without actually getting to light speed?
Would that change the results in any way?
Randomlamdom
They/Them- 1,676
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Yes, with the calculator i'm using and as many nines it'll let me do
200 lbs = 1821887.6523077 foe, 4-b
1400 lbs = 12753213.566154 foe, 4-b
200 lbs = 1821887.6523077 foe, 4-b
1400 lbs = 12753213.566154 foe, 4-b
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- #7
Holy shit!
That's with a speed as close to light speed as possible right?
Additionally, Is relativistic mass a thing or is it a bunch of nonsense?
If it's real then what would a 200 and/or 1,400 lb person weigh at 99.9% light speed weigh?
Randomlamdom
They/Them- 1,676
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Yes, as much as the calculator would do
I don't know, better ask a calc member for more scientific stuff
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- #9
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Sorry to bother you but one final question.
What's the force of a person that weighs 200 and/or 1,400 lbs moving at 299,792,457.99999999999992 meters per second?
Randomlamdom
They/Them- 1,676
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200 lbs = 84.352 exatons, 5-c
1400 lbs = 590.4646 exatons, low 5-b
1400 lbs = 590.4646 exatons, low 5-b
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- #12
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Though they do have a cap on Relativistic speed. I think it is like 93% SoL.
Otherwise, it would start inflating to infinity, as the closer you reach lightspeed, the energy increases exponentially, only reaching lightspeed at infinite energy.
Otherwise, it would start inflating to infinity, as the closer you reach lightspeed, the energy increases exponentially, only reaching lightspeed at infinite energy.
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On things above the 93% cap, you just use 4x the Newtonian KE, so =
200lbs = 90.703 kg
1,400lbs = 634.921 kg
(90.703 / 2 x 299,792,457.99999999999992²) x 4 = 3.897 Gigatons (High 7-A+)
(634.921 / 2 x 299,792,457.99999999999992²) x 4 = 27.277 Gigatons (6-C)
200lbs = 90.703 kg
1,400lbs = 634.921 kg
(90.703 / 2 x 299,792,457.99999999999992²) x 4 = 3.897 Gigatons (High 7-A+)
(634.921 / 2 x 299,792,457.99999999999992²) x 4 = 27.277 Gigatons (6-C)
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- #16
Cool.
Will going to 99.999999% light speed increase the mass in any significant way?
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Realistically, yes. (This is what causes the "Relativistic KE" in the first place)
But when it slows down, the mass drops back to rest mass.
But when it slows down, the mass drops back to rest mass.
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- #18
Is it possible for your to give me an exact number?
Or at least a range?
Class T maybe?
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99.9% SoL is 299492665.542 m/s tho
So...
(0.5 * 90.703 * 299492665.542^2) * 4= 1.6271367e+19 J or 3.8889500478011473916 gigatons of TNT (High 7-A+)
(0.5 * 634.921 * 299492665.542^2) * 4= 1.1389957e+20 J or 27.222650573613766056 gigatons of TNT (6-C)
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I never said it was 99.9% SoL?
But eh, effectively the same values.
I just copy-pasted this.
But eh, effectively the same values.
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- #21
Bro?
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Well, due to the 93% cap, I can really only give that limit.
Though realistically, it would be much higher
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- #23
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For example, realistically, a 200lbs person moving at 299,972,457.99999999999992 m/s, would have a relativistic mass of 3.926e+12 kg
Or 8.657e+12lbs (Class T)
For a 1,400lb, just multiply that 7 as it is essentially just m = γm0.
m = relativistic mass
γ = Lorentz Factor (Found by "γ = 1 / √(1 − v²/c²)", where v is velocity and c is equal to 299,792,458)
m0 = "rest mass" (Aka, the mass at rest, this would be equal to your 200/1,400lbs, but in kg)
But going with the cap of 93%, the highest 200lbs can reach is:
544.13lbs, or 246.77 kg (Only Peak Human)
Or 8.657e+12lbs (Class T)
For a 1,400lb, just multiply that 7 as it is essentially just m = γm0.
m = relativistic mass
γ = Lorentz Factor (Found by "γ = 1 / √(1 − v²/c²)", where v is velocity and c is equal to 299,792,458)
m0 = "rest mass" (Aka, the mass at rest, this would be equal to your 200/1,400lbs, but in kg)
But going with the cap of 93%, the highest 200lbs can reach is:
544.13lbs, or 246.77 kg (Only Peak Human)
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Now when I say things increase exponentially as they approach lightspeed...
I mean, it increases exponentially
This involves a lot of things:
Time, distance, mass, force, momentum, etc.
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