If you are traveling at 100 MPH and have a gun that shoots bullets at 100 MPH

[brandonbull]

Originally posted by: animalia

Originally posted by: MercenaryForHire
Those are some slow-ass bullets.

- M4H

wait so if a major league baseball pitcher throws a baseball out that same car...it's not gonna leave the car? wtf

If he tried to throw it in the same direction as the car it will be slower than the car.

 

[mooncancook]

So if I'm traveling on a train at 100mph, and I throw a rock backward at 10mph, the rock is going to come back and hit me at 90mph. I'll be damned.

 

[randay]

Originally posted by: bigrash

Originally posted by: animalia

Originally posted by: MercenaryForHire
Those are some slow-ass bullets.

- M4H

wait so if a major league baseball pitcher throws a baseball out that same car...it's not gonna leave the car? wtf

is the pitcher standing on a mound on top of the car?

Does he pitch for the mets?

 

[Tom]

Originally posted by: JulesMaximus
Bullets travel much faster than 100mph.

some bullets travel a lot slower than 100mph. Ever shoot a Nerf gun ?

 

[SViper]

Originally posted by: mooncancook
So if I'm traveling on a train at 100mph, and I throw a rock backward at 10mph, the rock is going to come back and hit me at 90mph. I'll be damned.

ROFLMAO!!! That was a good one.

 

[Evadman]

Originally posted by: mooncancook
So if I'm traveling on a train at 100mph, and I throw a rock backward at 10mph, the rock is going to come back and hit me at 90mph. I'll be damned.

WTF? no. Pay attention. You are on the train. If you are on the train and throw something at 10 MPH in either direction (forward or back) , it will travel at 10 MPH away from you.

However if someone has a radar gun on the train platform, and somehow the radar gun could pick up the rock through the train, then the speed of the rock would be 90 and 110 respectively.

 

[Kelvrick]

Originally posted by: SViper

Originally posted by: mooncancook
So if I'm traveling on a train at 100mph, and I throw a rock backward at 10mph, the rock is going to come back and hit me at 90mph. I'll be damned.

ROFLMAO!!! That was a good one.

I dont know if thats a joke, you're stupid or wahtever, but I had to laugh at that one. Good thing nobody poked their head in to wonder why I'm having fun working.

 

[EvilYoda]

Relativity...ain't it neat.

 

[DT4K]

Originally posted by: mooncancook
So if I'm traveling on a train at 100mph, and I throw a rock backward at 10mph, the rock is going to come back and hit me at 90mph. I'll be damned.

I can't tell if some of you are being sarcastic or are just dumb.

 

[DT4K]

Originally posted by: Aikouka
No, it wouldn't.

1) There's a wake that occurs (hence why Nascar people use Drafting to increase their speeds) when you drive that would at least throw the bullet even if it did stop in mid-air .

2) Once the bullet is fired from the "stationary" object (i.e. gun), the velocity of the stationary object shouldn't apply, therefore there is no "canceling" like you're trying to suggest.

EDIT: To elaborate on "stationary", I don't mean the object doesn't move at all. I meant it's stationary on the moving vehicle as in the gun is counted as moving at 100mph along with the truck.

1 is a valid point. Some of the air directly behind the vehicle will be getting pulled along with the vehicle. So in reality, it would probably move forward (relative to the ground) a little bit.
2 doesn't make any sense. Yes, once the bullet is fired, the gun is irrelevant. But that's not the point. If the gun has a muzzle velocity of 100 mph and it's moving backwards at 100mph (relative to the ground), then the bullet is going to exit the gun moving at 0 mph (relative to the ground) and will indeed fall to the ground (excluding the wind effects mentioned previously)

 

[Martin]

Physics makes baby Jesus happy, and ATOT just made him cry his eyes out.

 

[dxkj]

Originally posted by: DVad3r
I would say yes? It would be like firing a gun backwards from a fighter jet traveling mach 2 or 3? Which leads me to another question, how do those machine gun canons on fighter jets still exceed velocity and hit stuff in front of them at high speeds?

lol, the casing they are fired out are already moving at the speed of the plane, so they shoot at plane speed + bullet speed.

 

[Unheard]

Is this in a vacuum?

 

[dxkj]

*reads thread*
/head asplodes

 

[Kirby]

Originally posted by: Chiropteran

Originally posted by: nkgreen
But if you going forward at the speed of light and shoot a bullet forward at the speed what happens then? Riddle me that!!

You can not move forward "at the speed of light".

If you are moving forward at say, 90% the speed of light, and fire a a laser (which "shoots" at the speed of light), the laser would appear from your perspective to travel away from you at the speed of light.

However, someone who is at rest relative to you would see the laser as moving away from them at only the speed of light, not 190% the speed of light.

This isn't a paradox because of the way time and lengths are altered by the relative speeds. The distance you see the laser travel relative to yourself over a given time is greater than the distance the observer at rest sees the laser travel relative to you.

Ok

<---Takes physics next semester

 

[GuitarDaddy]

Pie r round
Cornbread r square

 

[amicold]

Originally posted by: nkgreen
But if you going forward at the speed of light and shoot a bullet forward at the speed what happens then? Riddle me that!!

If speeds are exact, I'd say the bullet wouldn't move from where it's charge ignited.

Edit:

Wait....wouldn't the speeds just add and stack since the point from where it's fired is moving at the speed of light already? Yes.

 

[randay]

Originally posted by: SViper

Originally posted by: mooncancook
So if I'm traveling on a train at 100mph, and I throw a rock backward at 10mph, the rock is going to come back and hit me at 90mph. I'll be damned.

ROFLMAO!!! That was a good one.

Actually it will come back and hit you at 100mph.

 

[ryan256]

Yes the bullet drops to the ground.
Think of it like this. Since you're traveling at the bullet's muzzle velocity it behaves more like you are shooting the gun off of the bullet instead of the bullet out of the gun.

 

[ebaycj]

Originally posted by: nkgreen
But if you going forward at the speed of light and shoot a bullet forward at the speed what happens then? Riddle me that!!

The universe implodes in on itself, then explodes violently in a second Big Bang creating an all-new universe.

 

[ebaycj]

Originally posted by: DVad3r

Originally posted by: MercenaryForHire

Originally posted by: DVad3r
I would say yes? It would be like firing a gun backwards from a fighter jet traveling mach 2 or 3? Which leads me to another question, how do those machine gun canons on fighter jets still exceed velocity and hit stuff in front of them at high speeds?

http://en.wikipedia.org/wiki/Inertia

- M4H

Im fat lazy and slow, so let's say the plane is going mach 2 and the bullet get's shot out at mach 2 then it's speed is mach 4?

Indeed. (That is until it starts slowing down significantly due to air friction).

 

[SonnyDaze]

Is this on a closed course with a professional driver?

 

[Doboji]

I think it would still move from the spot you fired it at 100mph... the distance between you and the bullet would be increasing at 200mph

 

[ebaycj]

Originally posted by: Martin
Physics makes baby Jesus happy, and ATOT just made him cry his eyes out.

I LOL'd.

 

[ebaycj]

Originally posted by: GuitarDaddy
Pie r round
Cornbread r square

I believe that it could be possible to create a square pie.