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re: Gun shot in the air - How long does it take for the bullet to fall back to ground?
Posted on 5/15/17 at 10:42 am to Nado Jenkins83
Posted on 5/15/17 at 10:42 am to Nado Jenkins83
quote:
All objects fall at the same rate
This is true only in a vacuum. Otherwise, parachutes would be useless.
1
Posted on 5/15/17 at 10:48 am to Perrydawg
quote:
Lack of humidity is, which is taken into account when sighting rifles in for long range shoot, hence the balls being kept in a humidor. I was just trying to use it as an example although it was not a good one.
Nope. It's lower air density. The air is less dense at that altitude and creates less drag on the ball. Higher humidity also creates less density and less drag. Moisture content of the balls is a separate issue.
Posted on 5/15/17 at 11:06 am to BiggerBear
quote:
Higher humidity also creates less density and less drag.
Think you meant lower humidity. Water vapor is denser than air therefore higher humidity creates more density and more drag.
Posted on 5/15/17 at 11:14 am to BiggerBear
quote:
All objects fall at the same rate
This is true only in a vacuum. Otherwise, parachutes would be useless.
i never said anything about resistance
Posted on 5/15/17 at 11:20 am to Street Hawk
Variables to consider.
Discharge velocity.
Angle of launch.
Ballistic Coefficient.
Terminal velocity on Earth.
Discharge velocity.
Angle of launch.
Ballistic Coefficient.
Terminal velocity on Earth.
This post was edited on 5/15/17 at 11:22 am
Posted on 5/15/17 at 11:24 am to Street Hawk
A girl...how much does she weigh?
Posted on 5/15/17 at 11:25 am to Street Hawk
quote:
fall back to ground
If it's free falling it won't have the velocity to kill unless it's a really big round. The angle has to be shallow enough to maintain a lethal horizontal velocity.
Either way, you would have to know the bullet's trajectory and initial velocity to determine the amount of time it's in the air.
This post was edited on 5/15/17 at 11:28 am
Posted on 5/15/17 at 11:25 am to BiggerBear
quote:
Moisture content of the balls is a separate issue.
Its an issue Ive been working on for years but my wife is a cold bitch in the sack.
Posted on 5/15/17 at 11:41 am to Street Hawk
I wondered about this question when I went quail hunting. We're shooting (and missing) at quail flying through the air. Those bullets had to go somewhere.
In the next field over was some kind of tower shoot party for pheasant. They weren't that far away. We could hear their gunshots. Surely if our bullets were pointed in that direction and missed the quail, we had a chance at hitting someone over there.
In the next field over was some kind of tower shoot party for pheasant. They weren't that far away. We could hear their gunshots. Surely if our bullets were pointed in that direction and missed the quail, we had a chance at hitting someone over there.
Posted on 5/15/17 at 11:45 am to Street Hawk
I have no clue. My physics professor never prepared me for real world problems like this. He always started with "neglecting air resistance and wind speed/direction"....and that just killed it for real world use.
Posted on 5/15/17 at 11:51 am to idlewatcher
quote:Was not given at my school, unfortunately. Didn't take it in college bc didn't know I would enjoy it.
Did no one take physics in school?
Posted on 5/15/17 at 12:05 pm to Street Hawk
Everything comes into play that far. Humidity elevation, temp, winds, spin-drift. There's a 6-10 second flight time so you have to shoot it where the targets going to be. Even the coriolis effect, the spin of the earth comes into play.
Posted on 5/15/17 at 12:06 pm to Street Hawk
There are way too many variables dude, no chance
Posted on 5/15/17 at 12:08 pm to Street Hawk
Got a way to find out, go shoot one and count the seconds. Then we all would know. 
Posted on 5/15/17 at 12:28 pm to mdomingue
quote:
Water vapor is denser than air
incorrect. A water molecule (~18 g/mol) is lighter than the rest of the gasses in the air (i.e. oxygen ~32 g/mol, nitrogen gas 28 g/mol), therefore decreasing the average density of the air.
When calculating scope holdover, you treat higher humidity like higher altitude. Sea level on a humid day can shoot similar to a couple thousand feet of elevation in a desert.
This post was edited on 5/15/17 at 12:29 pm
Posted on 5/15/17 at 12:28 pm to Clyde Tipton
quote:
Angle, caliber, powder load and vertical or horizontal grip of pistol are all factors that must be considered.
The type of round will also affect how quickly it falls. Hollowpernt = more drag = lower terminal velocity.
Posted on 5/15/17 at 12:37 pm to Galactic Inquisitor
Most bullets actually fall sideways. The "football spiral" position we typically think of for bullets is actually very unstable when the bullet quits rotating.
Posted on 5/15/17 at 12:48 pm to Street Hawk
the horse is named friday
Posted on 5/15/17 at 1:05 pm to dagrippa
quote:
A girl...how much does she weigh?
Her weight varies based on how many beers or shots you have had.
Posted on 5/15/17 at 1:10 pm to Nado Jenkins83
(no message)
This post was edited on 5/15/17 at 1:14 pm
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