after a bullet is shot in the air it travels 4,000 ft in the air and takes 59 seconds to a minute to come down
Assuming the bullet is fired from a gun, the bullet will move out of the bore with a high velocity and will immediately begin falling and decelerating. If the bore is rifled, the bullet will also rotate on its long axis (providing stability in flight).
Friction for one.
At the instant the gun fires, the bullet is at rest- speed zero. As the expanding gasses from the burning gunpowder reach the bullet, they begin pushing the bullet up the barrel. It's speed is increasing- and the longer the push, the higher the speed. There IS a point of diminishing returns- where a barrel LONGER than the perfect length begins to slow the bullet- you have used all the expanding gasses, and now friction is slowing the bullet. If you had a barrel 20 ft long, the bullet would not make it all the way up the barrel, it would stop.For barrels on any realistically-usable weapon, a longer barrel will provide more momentum to the bullet than a shorter one. In addition, longer rifled barrels will also impart more spin, which will increase accuracy.
Which gun.... of course it could be a toy gun which can barely even fire, in which case it will be like half a metre, or a .50 BMG (12.7 mm) McMillan bolt-action rifle with the longest kill of 2,430 metres (7,972 ft). All depends on power.. (I think he already quanitified the direction when he said 'straight'.... its called horizontal...
There is no single answer to this question. It will depend on the cartridge, and the characteristics of the powder and bullet being fired. For instance, the 40 gr 22 Long Rifle cartridge accelerates from the moment of firing, until it travels about 12 inches. The gas produced by firing reaches it's max expansion, and the bullet now begins to SLOW to some degree from friction with the barrel. Acceleration is NOT uniform with any firearm cartridge- if graphed it would be a curve with a very sharp spike.
That would depend on the mass of the bullet, the bullet's velocity when it left the barrel of the gun, and from how high up the bullet was fired from.
a bullet of the same caliber and same grains of powder fired from a long barrel will have a higher muzzle velocity than if fired from a short barrel.
Assuming the bullet is fired from a gun, the bullet will move out of the bore with a high velocity and will immediately begin falling and decelerating. If the bore is rifled, the bullet will also rotate on its long axis (providing stability in flight).
No. Trying to do so will get you killed. Bad idea. REALLY bad idea.
the bullet train is like a long streamlined tube with either end pointing down.
No it does not. It may flake off and get onto your barrel but as long as you clean your gun as you should there will be no damage done.
Fired ammunition from a firearm reaches a much higher initial velocity due to explosive propellant forces. In contrast, ammunition dropped from a high altitude reaches a terminal velocity where gravity pulling down is balanced by air resistance pushing up. The fired bullet maintains its higher velocity until slowed by air resistance and gravity, while dropped ammunition reaches a constant speed due to these opposing forces.
Clans of long ago that wanted to get rid of their unwanted people without killing them used to burn their houses down - hence the expression "to get fired."
Handgun projectiles are fired through shorter barrels which lead to a reduced production of muzzle energy.
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Projectiles in flight have two net forces acting on them. They've already been fired, so it is gravity (acting "down") and air resistance (acting "back") that are considered. There is a quirky factor called bullet rise or bullet drop that is a factor in long shots where a rotating projectile is used and a crosswind is present, but the two basic things acting on the projectile are gravity and atmospheric drag.
Friction for one.