Assmuing it can survive moving that fast how fast would a 9mm round have to be moving to shred through a tank?

Assmuing it can survive moving that fast how fast would a 9mm round have to be moving to shred through a tank?

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en.wikipedia.org/wiki/Impact_depth
en.wikipedia.org/wiki/Kinetic_energy
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Diesel or CNG?

E=mc^2

It would have to be moving at a speed fast enough for an object with its amount of mass to shred through a tank.

Specs for the M829A1 kinetic energy penetrator round used in the M1 Abrams is 1,575 m/s muzzle velocity and 4.6kg mass.
A typical 9x19mm round has a mass of 7.5g or 0.0075kg.

To achieve the same kinetic energy as the tank round the 9mm would require a muzzle velocity of 966,000 m/s, roughly 3 times the speed of light.

Therefore it is not possible.

What if it was a diamond bullet? I believe there is a study that shows diamond is the harder metal.

Did you mean to write km/s? If it's 966,000 m/s, then you're at about 1/3c.

Your math is off

Nvrmind, mine was

You're using the wrong equations. When your initial work gets you an answer like that you need to switch to relativistic equations.

Too lazy to do the math myself, but the actual answer would be something like .9999999999999999999999999999999 c

>When your initial work gets you an answer like that you need to switch to relativistic equations.
literal stamp collecting lmao
is math the only field with thinking and not memorization?

Is this a joke?

Do you retards actually think you would need to accelerate it to fucking relativistic speeds to penetrate a tank?

doesn't that just equal c?

To shred through it with a single bullet, yeah. More realistically, you could just multiple at lower speeds while aiming at the same spot and break through the material over time.

Ke = 1/2*m*v^2

.5*4.6*1575^2=.5*.0075*v^2
v = 39005 m/s

Don't worry, you were only off by 768,500%

A 9mm round can't shred through a tank. Penetration is limited by mass and cross-sectional area, regardless of velocity, and Newton was able to figure this out with no reference to the concept of kinetic energy (momentum only):
en.wikipedia.org/wiki/Impact_depth

What a 9mm round at arbitarily high speed can do, theoretically, is cause an explosion or release of radiation sufficient to destroy the tank.

Imagine being this guy. Imagine you have all the time in the world to write up this fucking post containing the result of the simplest calculation ever. Imagine STILL fucking up this badly. Jesus Christ, whatever you do, give up, you piece of shit.

First of all use the Lorentz transformation
Second of all
c = 299 792 458 m / s
>966,000 m/s roughly 3 times the speed of light.
Is this bait?

At high enough speeds, a 9mm round can actually turn into a much heavier round. This is because of ammunition oscillation. Usually the bullet will impact before this happens, but at high speeds the internal clock of the 9mm will be altered, so more time passes and it turns into an anti-tank round.

This is called Einstein's theory of special bullets.

At say relativistic speeds the impact of the 9mm round would cause fusion and nuclear reactions, release of heat and x-rays.

Yes, it's not "shredding through" the tank, it's just blowing it up.

These are the people who reply to your questions in the SQ threads.

Fucking kek

>Specs for the M829A1 kinetic energy penetrator round used in the M1 Abrams is 1,575 m/s muzzle velocity and 4.6kg mass.
A typical 9x19mm round has a mass of 7.5g or 0.0075kg.

en.wikipedia.org/wiki/Kinetic_energy

Kenetic energy (in joules) = 1/2(mv^2)
(m = mass in kilograms)
(v = velocity in metes per second)

>1,575 m/s muzzle velocity and 4.6kg mass.

5,705,437.5 joules

>7.5g or 0.0075kg.

It would require a muzzle velocity of 48,257 m/s

around Mach 140 (140 times the speed of sound in air.)

Or about 1/6,000th the speed of light.

that's not even faster than the speed of light

You would need to, yes.

There's no free lunch when it comes to penetrating dense materials

The funny thing is:

The projectile will turn to plasma as soon as it exits the barrel at those speeds

So, it's not possible anyway

your dense

>not using the relativistic expression to calculate kinetic energy
Fucking brainlet

But would the plasma disperse before impacting the target at those speeds?

I calculated it would ignite the atmosphere

its_a_big_one.jpeg

>doesn't that just equal c?
no. 0.999... != 0.999...

This is physics Beyond the Standard Model of Bullets (BSMB) and isn't understood enough to use it for engineering yet.

Some people still think the bullets might actually be made out of string, kek.

Yes, it'd disperse

It'd be like a shotgun of flashy debris and shit that would lose velocity quickly