Drop a bullet vs. Shoot a bullet

[Excelsior]

Originally posted by: hypn0tik

Originally posted by: gigapet
barring no air resistance and gravity remains constant they hit the ground at the exact same time.

Agreed.

 

[91TTZ]

Originally posted by: oogabooga
heh it's kinda funny cause it's almost like everyone agrees (with small exception) : they just disagree on what to discount/assume..

You're WRONG. It's no fun to agree on ATOT.

 

[Triumph]

Originally posted by: 91TTZ

Originally posted by: oogabooga
heh it's kinda funny cause it's almost like everyone agrees (with small exception) : they just disagree on what to discount/assume..

You're WRONG. It's no fun to agree on ATOT.

Yes it is!

 

[LongCoolMother]

Originally posted by: Triumph

Originally posted by: 91TTZ

Originally posted by: oogabooga
heh it's kinda funny cause it's almost like everyone agrees (with small exception) : they just disagree on what to discount/assume..

You're WRONG. It's no fun to agree on ATOT.

Yes it is!

my brain is about to explode from this paradox!

 

[mi xiao]

Originally posted by: hypn0tik
And Newton is turning in his grave.

...more like "newton is spinning like a lathe."

 

[MAME]

Originally posted by: Rogue
All of you are full of $hit. Let's remember that the sound of a rifle or gun firing consists of two things, the explosion from the powder in the casing which accelerates the bullet well beyond terminal velocity and the sound of the round actually accelerating past the speed of sound which happens almost simultaneously. Now, maybe I'm way off here, but last I checked, the average bulled fired from a gun is a hell of a lot faster than something dropped from anywhere.

they aren't pointed at the ground genius

 

[Excelsior]

Originally posted by: MAME

Originally posted by: Rogue
All of you are full of $hit. Let's remember that the sound of a rifle or gun firing consists of two things, the explosion from the powder in the casing which accelerates the bullet well beyond terminal velocity and the sound of the round actually accelerating past the speed of sound which happens almost simultaneously. Now, maybe I'm way off here, but last I checked, the average bulled fired from a gun is a hell of a lot faster than something dropped from anywhere.

they aren't pointed at the ground genius

lol, wow Rogue is an idiot.

 

[DT4K]

Originally posted by: akubi
please do go on.

i think all physics grads are laughing in tears by now.
:laugh::thumbsup:

Actually, I think anyone who's ever taken a basic high school physics class is laughing in tears by now.

Originally posted by: 91TTZ

Originally posted by: Triumph

So what, no elementary physics book in the world is going to ask a Physics 101 student to incorportate the curvature of the earth. The answer is that they will land at the same time.

We live in the real world, not in an elementary physics textbook. And besides, who said anything about an elementary physics textbook? We aren't talking about school kiddies here. Who cares what an elementary physics textbook says? School only prepares you for the real world, so real world > simplified book. This is the real world, not physics 101. In the real world, the earth isn't flat.

Yeah, and in the real world, there is air resistance and wind direction and hills and bumps, etc, etc, etc. I'm not sure why you insist on including certain real world factors, but still completely ignore others.

WTF is with all these morons on the last page claiming that the bullet will get lift from it's mass?????? WTF are you guys smoking?

This is obviously a Physics 101 type question. The point is not to learn about the curvature of the earth or air resistance, blah, blah, blah. The point of this basic problem is to show how the horizontal and vertical forces are completely independent from each other. For some reason, the "common sense" belief is that if an object is traveling at high speed in a horizontal direction, it will somehow resist the vertical force of gravity. This problem is given in basic physics courses to show the incorrectness of this belief.

And for that purpose, the answer is that they will both hit the ground at the same time because the acceleration of gravity is the same for both bullets and the horizontal velocity is irrelevant.

It's the same kind of problem as the "dropping a 1 pound ball and a 100 pound ball at the same time" problem. Or the "dropping a feather and a marble in a vacuum" problem. In these cases, the point is to dispell a common misbelief that mass has an effect on the acceleration of gravity.

 

[hysperion]

Originally posted by: RedRooster
From 4' high you drop a bullet(without casing) and at the same moment you fire a gun exactly parallel to and 4' from the ground. Which bullet would hit the ground first?

edit- ok, you walk out in the middle of a field on a normal day(not in space, not in a vaccum) and try this. standard .22 calibre rifle. and we can assume the field is perfectly flat, with no hills of dirt sticking up, you get the idea. or it could be all cemented, with hundreds of yards of cement(or however far a .22 will shoot) EXACTLY flat the whole way, not curving with the Earth's surface along the way.

Here's something to further muddy the waters.....
http://www.bobtuley.com/external.htm

 

[hysperion]

Originally posted by: 91TTZ

Originally posted by: stevens
Im pretty sure that the spin put on the bullet by the rifling of the barrel will keep it in the air longer. But if rifling is not a factor, they will hit the ground at the same time.

Wrong. That has nothing to do with it. Whether a horizontal or rotational direction exists, the vertical motion will stay the same.

 

[Sweeper]

http://www.physicsforums.com/archive/t-73598_a_bullet?.html

 

[The Green Bean]

dropped bullet

 

[ElFenix]

Originally posted by: Triumph

Originally posted by: 91TTZ

Originally posted by: oogabooga
heh it's kinda funny cause it's almost like everyone agrees (with small exception) : they just disagree on what to discount/assume..

You're WRONG. It's no fun to agree on ATOT.

Yes it is!

A man walks into an office.

Man: Good morning, I'd like to have an argument, please.
Receptionist: Certainly, sir. Have you been here before?
Man: No, this is my first time.
Receptionist: I see, well we'll see who's free at the moment.
Mr. Bakely's free, but he's a little bit concilliatory. No.
Try Mr. Barnhart, room 12.
Man: Thank you.

He enters room 12.

Angry man: WHADDAYOU WANT?
Man: Well, Well, I was told outside that...
Angry man: DON'T GIVE ME THAT, YOU SNOTTY-FACED HEAP OF PARROT DROPPINGS!
Man: What?
A: SHUT YOUR FESTERING GOB, YOU TIT! YOUR TYPE MAKES ME PUKE! YOU VACUOUS
STUFFY-NOSED MALODOROUS PERVERT!!!
M: Yes, but I came here for an argument!!
A: OH! Oh! I'm sorry! This is abuse!
M: Oh! Oh I see!
A: Aha! No, you want room 12A, next door.
M: Oh...Sorry...
A: Not at all!
A: (under his breath) stupid git.

The man goes into room 12A. Another man is sitting behind a desk.

Man: Is this the right room for an argument?
Other Manpause) I've told you once.
Man: No you haven't!
Other Man: Yes I have.
M: When?
O: Just now.
M: No you didn't!
O: Yes I did!
M: You didn't!
O: I did!
M: You didn't!
O: I'm telling you, I did!
M: You didn't!
O: (breaking into the developing argument) Oh I'm sorry, is this a five minute
argument, or the full half hour?
M: Ah! (taking out his wallet and paying) Just the five minutes.
O: Just the five minutes. Thank you.
Anyway, I did.
M: You most certainly did not!
O: Now let's get one thing perfectly clear: I most definitely told you!
M: Oh no you didn't!
O: Oh yes I did! ___
M: Oh no you didn't! \
O: Oh yes I did! \
M: Oh no you di'''t! \
O: Oh yes I did! \
M: Oh no you d''''t! \
O: Oh yes I did! \
M: Oh no yoddn''''t! \
O: Oh yes I did! > very fast
M: Oh no y idn''''t! /
O: Oh yes I did! /
M: No y IDN''''T! /
O: Oh yes I did! /
M: No y IDN''''T! /
O: Oh yes I did! /
M: No y IDN''''T! /
O: Oh yes I did! ___/
M: Oh look, tsisn''''t an argument!

(pause)

O: Yes it is!
M: Notisn''''t!

(pause)

<bM It''''s just contradiction!
O: Notisn''''t!
M: It IS!
O: It is NOT!
M: You just contradicted me!
O: No idn''''t!
M: You DID!
O: No no no!
M: You did just then!
O: Nonsense!
M: (exasperated) Oh, this is futile!!

(pause)

O: Notisn''''t!
M: Yes it is!
(pause)
I came here for a good argument!
O: AH, no y idn''''t, you came here for an *argument*!
M: An argumtisn''''t just contradiction.
O: Well! it CAN be!
M: Notcan''''t!
An argument is a connected series of statement intended to establish a
proposition.
O: Notisn''''t!
M: Yes iis! 'isn''''t just contradiction.
O: Look, if I *argue* with you, I must take up a contrary position!
M: Yes buttisn''''t just saying "notisn''''t".
O: Yes it is!
M: Notisn''''t!
O: Yes it is!
M: Notisn''''t!
O: Yes it is!
M: NotISN''''T! Argument is an intellectual process. Contradiction is just
the automatic gainsaying of anything the other person says.
O: It is NOT!
M: It is!
O: Not at all!
M: It is!

>DING!< The Arguer hits a bell on his desk and stops.

O: Thank yo hat''''s it.
M: (stunned) What?

hat''''s it. Good morning.
M: But I was just getting interested!
<>: I''''m sorry, the five minutes is up.
M: That was never five minutes!!
<>: I''''m afraid it was.
M: (leading on) No asn''''t.....

(pause)
O: (dirty o) I''''m sr, I''''m not allowed to argue any more.
M: WHAT??
O: If you want me to go on argui,you''''ll have to pay for another five
minutes.
M: But that was never five minutes just now!
(pause... the Other Man raises his eyebrows)
Oh Come on!
Oh this is...
This is ridiculous!
O: I told you...
I toldo, I''''m not allowed to argue unless you PAY!
M: Oh all right. (takes out his wallet and pays again.) There you are.
O: Thank you.
M: (clears throat) Well...
O: Well WHAT?
M: That was never five minutes just now.
O: I toldo, I''''m not allowed to argue unlsyou''''ve paid!
M: Well I just paid!
O: No y idn''''t!
M: I DID!!!
O: Y idn''''t!
M: I DID!!!
O: Y idn''''t!
M: I DID!!!
O: Y idn''''t!
M: I DID!!!
O: Y idn''''t!
M: (unable to talk strah he''''s so madIdon''''t want to argue about it!
O:el I''''m very sorry but y idn''''t pay!
M: Ah HAH!! Well if idn''''t pay, why are you arguing??? Ah HAAAAAAHHH!
Gotcha!

O: (pause) No yohven''''t!
M: Yes I have!
fyou''''re arguing, I must have paid.
O: Not necessarily.
I *could* be arguing in m

 

[Jon855]

I shoot rifles all my life and it's highly variable depending on the grain of the bullet and the rate of the twist/barrel length and as well the Muzzle speed, ambient temp, aire pressures... ETC, the factors to compute are way high but surely, it's possible that one muntion would hit at the same time while the other won't and that's very likely.

in case you were wondering...
After my father's recent death I now have doubled my firearm in general.

12Ga. Overhead Shotgun for Skeet/Hunting Shooting [My 15th Birthday Gift]
12Ga. Side by Side Shotgun for Skeet/Hunting Shooting [Passed to me after my father's death]
20Ga. Pump Action Shotgun for Home Defense/General Shooting [Passed to me after my father's death]
410Ga. Single Shot Shotgun [Passed down to me from my mom]
.22Lr Henry Lever Action [A gift from my uncle to me, my fav .22lr rifle of all time]
.25-06 Bolt Action that my dad never completed. [Will resume the crafting of the stock and it'll go to my sister]
.375 Lever Action Rifle [Passed down to me after my father's death]
.300 Win Mag Bolt Action [Passed down to me after my father's death]
.300 Win Mag Bolt Action [The first rifle I purchased myself]
.22-250 Savage Model 112BVSS Bolt Action [My long range shooting rifle zero'd at 600m groups of 5 in sub of 12 Inches which isn't too bad.]
.22lr Single Action [Handed down to me from my mom]
[Two handguns currently under my mom until I turn 21 to comply with the federal laws .357 Mag / .22lr]

Given this number of firearms that I own, not the other members of my family such as my sis/mom... You would be very sorry to even break in my home...

 

[Bateluer]

I'd say the shot bullet would hit first, being that it starts out moving at a much higher rate of speed than the dropped bullet. If there was enough distance for gravity and air resistance to equalize the two, then they'd hit the same, but from a 4' distance, the shot bullet is going to bury itself into the ground before the dropped bullet even hits the ground.

 

[Jon855]

for the .22-250 It'll drop a lot of inches in less than two seconds, but within my computation and knowledge of the .22-250 as I shoot it long range, the .22-250 will hit after the time it takes for a bullet to drop dead straight down from the same height of course. This is due to the fact that all bullet rise in the first few yards upwards to 200yds. So it gives them a slightly more "air time" rather than a bullet which was dropped dead straight, but they all have many variable, so i would personally say that the bullet being dropped will in nearly every instance hit the ground before the bullet leaving barrel will ever hit the ground.

 

[timswim78]

Originally posted by: 91TTZ

Originally posted by: timswim78
NEED POLL!

Math doesn't work by democracy.

True, but it does help to gauge the collective intelligence of a constituency.

 

[NiKeFiDO]

bump

 

[Mo0o]

Originally posted by: NiKeFiDO
bump

Why are you bumping this, theres been plenty of posts already.

 

[NiKeFiDO]

because this thread is rediculous

 

[american trash]

theres a lot of people who didn't pay attention in high school physics class in here...

Edit: this post is awesome.

 

[OdiN]

When I first read this...I thought you meant that you dropped one and the shot one was shot down into the ground...I started seeing all these people saying "same time" and "dropped one first" and was scratching my head lol.

 

[Minjin]

Just aim the gun at the horizon to get rid of your curvature problem.

Mark

 

[masterxfob]

umm, so let's put it this way...

if you had to be under either the dropped (let's imagine it would explodes on impact) or shot bullet, which would you choose?

 

[PrinceofWands]

nevermind, just reread the initial post. My bad. Was thinking he meant both pointed down.