Does a bullet come back down at the same speed?
In the non-existant world where only gravity matters, yes, the bullet would come back down at exactly the same speed as it went up. This is because gravity works to slow things down AND to speed things up. When the bullet is going up, gravity is trying to pull it down, so the bullet slows down.
Can a bullet return to Earth?
The general consensus is that a bullet fired straight up—at precisely 90 degrees to the horizontal—is unlikely to kill a healthy adult when it returns to Earth. That’s because, on the way down, air resistance prevents the bullet from returning to its initial velocity.
How long does it take for a bullet to come down from the sky?
Once the gases stop pushing it, it begins to slow down due to two forces – the resistance of the air that it’s pushing through, and the downward suck of gravity. Typically, a bullet will take around 30 seconds to climb to a height of around three kilometres, at which point it has a velocity of zero. Then it falls.
How fast would a bullet have to go to reach space?
RD points out that anything leaving the Earth into space needs to be travelling at escape velocity. That means 11.2km/s.
Does a fired bullet hit the ground at the same time as a dropped one?
There you have it. The y-component of air resistance for the fired bullet still depends on the fired speed of the bullet (since it is proportional to v2). A fired bullet (with air resistance) does not hit the ground at the same time as a dropped bullet.
Which bullet will hit the ground first?
The bullet dropped hits first because of the air resistance. This is because the air resistance is proportional to the square of the velocity (on subsonic speeds) once the bullet starts to drop the drag which is directly against its direction gets a lifting component.
Can a bullet go to space?
Once shot, the bullet will keep going, quite literally, forever. “The bullet will never stop, because the universe is expanding faster than the bullet can catch up with any serious amount of mass” to slow it down, said Matija Cuk, an astronomer with joint appointments at Harvard University and the SETI Institute.
Why do doctors leave bullets in?
In most cases, if a bullet has not penetrated an internal organ or caused infection, doctors will leave it in rather than risk surgery. The surrounding tissue encapsulates the bullet, preventing it from dissolving and leaching into the blood.
Can guns fire underwater?
Can a gun fire underwater? | Physics of firing | Slow motion shoot
Can a bullet go into space?
Assuming you are floating freely in space the gun will work just as it does on Earth. However, the bullet will continue moving for many thousands of years, eventually coming to a stop due to the friction from the diffuse material found in ’empty’ space (or when it encounters another object).
Would a bullet go forever in space?
“The bullet will never stop, because the universe is expanding faster than the bullet can catch up with any serious amount of mass” to slow it down, said Matija Cuk, an astronomer with joint appointments at Harvard University and the SETI Institute.
Can a bullet be fired on the Moon?
Gun: Yes. The oxidizer is within the gun powder, so a gun will fire in the vacuum of the Moon. The bullet will travel significantly farther, because it will fall slower and there will be no air resistance.
Do heavier bullets drop faster?
Lighter bullets shoot faster and flatter than heavy bullets if both have similar shapes, i.e. spire points. Heavy bullets carry more energy and hold it farther downrange, but drop more. The differences in energy and drop are minor and not worth worrying about unless there’s a huge spread in weights, i.e. 120-grain vs.
Can a dropped bullet go off?
A bullet isn’t likely to go off when you drop the cartridge for various reasons, including how it lands. Most dropped bullets land tip first on a floor or the ground. When this happens, the bullet will land in a way that prevents the impact from being sufficiently forceful to cause the bullet to fire.
Will a bullet fired and a bullet dropped land at the same time?
A fired bullet (with air resistance) does not hit the ground at the same time as a dropped bullet.
How cold is space?
Space is very, very cold. The baseline temperature of outer space is 2.7 kelvins (opens in new tab) — minus 454.81 degrees Fahrenheit, or minus 270.45 degrees Celsius — meaning it is barely above absolute zero, the point at which molecular motion stops. But this temperature is not constant throughout the solar system.
Is it better if a bullet goes through you?
A bullet that passes through the body (creating an exit wound) generally will cause less damage than one which stays in the body, because a bullet that stays in the body transfers all of its kinetic energy (and ensures maximum damage to tissue).
Is it possible to live with a bullet in your body?
“If you survive, it is life changing, because of injuries associated with a bullet ripping through human tissue,” said Bill Smock, a police surgeon at the Louisville Metro Police department. “If it rips through your spinal cord and you survive, you will be a paraplegic or a quadriplegic.
How do Navy Seals carry guns underwater?
Each of the projectiles came packed inside a self-contained, watertight tube that also functioned as a barrel. This design meant the pistol was essentially silent below the water or on land. The gun might be better described as a “pepperbox,” according to Dockery.
Can guns work in space?
Fires can’t burn in the oxygen-free vacuum of space, but guns can shoot. Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe. No atmospheric oxygen required.
Why are hollow points illegal in war?
Legislation. The Hague Convention of 1899, Declaration III, prohibited the use in international warfare of bullets that easily expand or flatten in the body. It is a common misapprehension that hollow-point ammunition is prohibited by the Geneva Conventions, as the prohibition significantly predates those conventions.
Do astronauts carry guns in space?
Guns were never carried aboard U.S. spacecraft. Instead, a sharp machete served as the most serious armament for a jungle landing. Besides, with a worldwide U.S. network of bases and existing air-sea rescue forces, odds were that any downed astronauts would be found and rescued pretty quickly.
Do all bullets drop at the same rate?
Bullet Fired vs Bullet Dropped – Mythbusters for the Impatient
How hot do bullets explode?
Bullets have to get up to around 400 degrees before they start spontaneously discharging. However, even though your ammo isn’t likely to be set off, it can still be damaged by high heat.
Can electricity set off a bullet?
There are two approaches to electrically firing the cartridge. One method retains the primer, which functions analogously as a conventional primer. However, rather than being struck by a firing pin or by equivalent mechanical means, an electric current serves to detonate the primer.