A needle traveling at the speed of light can destroy Earth?

[Drip Bayless]

Learn some new every day
Good looks

 

[Gunz&Butta]

Ok, I did the calculation assuming 1 needle weighs one gram

KE of that needle traveling at the speed of light is 45 billion kilojoules.

The bomb dropped on Hiroshima released 15 billion kilojoules.


Can someone come up with a better estimate of the mass of a needle? Does 1 gram sound right?


KE = 1/2 × .001kg x (9.0 x 10^16 m^2/s^2)
= 4.5 x 10^10 kJoules

 

[Double Burger With Cheese]

Ok, I did the calculation assuming 1 needle weighs one gram

KE of that needle traveling at the speed of light is 45 billion kilojoules.

The bomb dropped on Hiroshima released 15 billion kilojoules.


Can someone come up with a better estimate of the mass of a needle? Does 1 gram sound right?

I can tell you off top a needle don’t weigh a gram. I got eyeball skills and that shyt probably like a .3

 

[ElMorenoFeo809]

No because it would disintegrate once it enters the earth's atmosphere.

 

[hatealot]

Yeah same reason dropping a penny off the Empire State could really fukk someone up, or a train hitting you at less than 10 mph can kill you
Kinetic energy

Has this been proven in the physical world?
Alot of this be a bunch of theoretical mumbo .
The friction of the air resistance in comparison of the weight would offset its kinetic impact.

I used to throw fish tanks pebbles and coins off my terrace at 33 floors and hit people.
Not saying 33 floors is in comparison to empire state but has this been actually proven.

 

[Pseudonym]

Build a protective wall around earth

 

[Double Burger With Cheese]

Has this been proven in the physical world?
Alot of this be a bunch of theoretical mumbo .
The friction of the air resistance in comparison of the weight would offset its kinetic impact.

I used to throw fish tanks pebbles and coins off my terrace at 33 floors and hit people.
Not saying 33 floors is in comparison to empire state but has this been actually proven.

Sound like ducktales. If a mothafukka drop a penny off the Empire State Building I would stand at the bottom and catch it. Nobody dying from that shyt

 

[hatealot]

Sound like ducktales. If a mothafukka drop a penny off the Empire State Building I would stand at the bottom and catch it. Nobody dying from that shyt

Agreed. Muthafukka think the a penny put a whole in you if you get hit. It's. Not.

 

[OneManGang]

Sound like ducktales. If a mothafukka drop a penny off the Empire State Building I would stand at the bottom and catch it. Nobody dying from that shyt

Lol y’all are mixing the principles of classical physics and relativity. A penny dropped from a skyscraper has to deal with a lot of different forces counteracting gravity, which has a set and pretty low acceleration. Moving at the speed of light is a completely different set of rules and physics.

 

[Gunz&Butta]

I can tell you off top a needle don’t weigh a gram. I got eyeball skills and that shyt probably like a .3

So if a needle weighs .3 grams, the KE would be 15 billion kilojoules. That's another Hiroshima.


We're safe, guys

 

[Double Burger With Cheese]

Lol y’all are mixing the principles of classical physics and relativity. A penny dropped from a skyscraper has to deal with a lot of different forces counteracting gravity, which has a set and pretty low acceleration. Moving at the speed of light is a completely different set of rules and physics.

Im just saying, a needle, penny, a baby asteroid, I’m catching that shyt.

Also, who the fukk gon be dropping needles from outer space

 

[Drip Bayless]

Has this been proven in the physical world?
Alot of this be a bunch of theoretical mumbo .
The friction of the air resistance in comparison of the weight would offset its kinetic impact.

I used to throw fish tanks pebbles and coins off my terrace at 33 floors and hit people.
Not saying 33 floors is in comparison to empire state but has this been actually proven.

Sound like ducktales. If a mothafukka drop a penny off the Empire State Building I would stand at the bottom and catch it. Nobody dying from that shyt

Agreed. Muthafukka think the a penny put a whole in you if you get hit. It's. Not.

Nah I was mistaken
@MasterOfAllHeSurveyz corrected me

 

[Absolut da poet ®]

Explain

The bonds that join the atoms no longer exist

Inertia depends on mass but that just my guess

Ask one of the six cert math major brehs in here

 

[MasterOfAllHeSurveyz]

So if a needle weighs .3 grams, the KE would be 15 billion kilojoules. That's another Hiroshima.


We're safe, guys

It has to be travelling like 99.9% the speed of light with about 40 9s pass the decimal point. Someone calculated a grain of dust and it was 99.9% with 42 9s on PhySci forums to obliterate the Earth.

I got a pirated copy of Universe Sandbox. I'll run the simulation.

 

[Negro Caesar]

Yeah same reason dropping a penny off the Empire State could really fukk someone up, or a train hitting you at less than 10 mph can kill you
Kinetic energy

I think they proved the myth about pennys killing if dropped from a skyscraper. Dude that did it said it felt like a rain drop. But the building wasn’t quite as tall as the Empire State building