How fast can a bullet travel?
923629
Depends on the powder charge behind it, the size and shape of the bullet and the rifling of the barrel from which it emerges.
1097929
I'm not sure who usually uses compressed nitrogen to shoot a bullet out of a gun.  Typical firearms use gunpowder, an explosive chemical mixture.  The bullet is propelled by the force of expanding gas in the explosion.\n\nPractically anything can be used to propel a bullet: explosive material, springs, leverage, compressed gases, etc.  The most powerful guns (those used on battleships and gun implacements) used plastic explosives to push their projectiles.  \n\nThere have been some experiments with using charged particles as a source of projectile propulsion.  The repulsive force between powerfully charged electromagnets can be INCREDIBLY powerful.  Theoretically, it should be possible, using current technology, to fire a small projectile at an appreciable fraction of the speed of light.  Obviously, this would take an enormous amount of money and some incredible engineering.
623745
M1 has muzzle velocity of 2800 ft/sec according pattonhq.com and  2,837 ft/s according to the wikipedia article\n\nM14 rifle has an initial velocity of 2,800 feet per second \naccording to both.\n\nM1903 bullet had an initial velocity of 2,700 feet per second (wikipedia.org)
1130695
The muzzel velocity varies, depending on the brand of ammo, length of barrel, etc.\n\nYou could use a typical muzzel velocity of 1200 feet per second though...thats 818 mph.  I've seen manufacturers claim up to 1400 feet per second...954mph.\n\nhope this helps.
478612
It depends on the object.  Tests with coins have measured velocities too low to cause signifcant damage to the average human head.\n\nTerminal velocity, in this case the maximum speed a falling object will reach, depends on the shape of the object, the accelleration, and the qualities of the atmosphere.\n\nWhen an object is dropped near earth, it accellerates towards the earth at about 32 ft/sec/sec.  It goes faster and faster until the frictional drag from the air, has a slowing effect equal to the speeding effect from gravity.  From that point on it will stay approximately the same speed.  A feather has a very low terminal velocity.  A crowbar has a much higher one.  Its all about friction in air.\n\nA penny dropped near a planet without an atmosphere would accellerate toward the planet, getting faster and faster until it hit.  This scenario could be deadly for the space-suited person in the way.\n\nWater falling has an additional complication in that the air drag changes the shape of the water droplet and that in turn affect the drag.  A water droplet's changing shape on impact also affects the damage it might do a person.
239661
The bullets won't be pulled to earth at the same downward _speed_, but they will be pulled by the same downward _force_.  The force that pulls it toward the earth (gravity) would cause both to have the same vertical speed, assuming:\n\n(1) the bullet that was shot from a gun is fired horizontally, and\n(2) these occur in a vaccuum, where the effects of air can be neglected.\n\nNow, to find how long it would take them to hit the ground and how far away the fired bullet would be, you'd need to know how high the bullets are initially and how fast the bullet came out of the gun.  There are a few formulas that you can use:\n\nvf = vi + at\nvf^2 = vi^2 + 2ad\nd = vt\n\nwhere\nvf = final velocity\nvi = initial velocity\na = acceleration due to gravity\nt = time\nd = distance\n\nUsing these in a logical manner can get you what you need.  For example, you can use the second equation to find the vertical velocity of the bullet as it hits the ground.  Then you can take this vertical velocity (vf now) and use the first equation to find how long it took to fall.  Then with this time, you can find out how far the fired bullet went using the third equation.\n\nIt helps if you separate the bullets' velocity into a vertical and horizontal component - i.e. how fast is it moving horizontally and how fast vertically.  These two are independent of each other.  If you keep that in mind that helps in understanding why, in a vaccuum anyway, these two bullets should hit the ground at the same time.
805410
Let me ask you a question. \n\n If I shot a bullet straight up, and then dropped a feather..  would the falling object move faster than the one going upwards?
810426
From your point of view on the plane (as well as the point of view of any other aircraft traveling the same speed and the same direction), the velocity of the projectile will appear to be the same whether fired forward or backward. However, the velocity will drop off faster when fired forward from the plane than it would on the ground due to the increased wind resistance produced by the head wind.\n\nFrom the point of view of someone on the ground, the speed of the bullet would be added to the speed of the plane when fired forward and subtracted from the plane when fired backward.\n\nUltimately, the velocity of any object is relative to the reference frame of the observer.
235514
The slowest muzzle velocity ammo is faster than the speed of sound, add reaction time of deer to it, no. Multiple shots possibly afford some escape time.
1058405
I think it would land behind you because as it rises, the rotational speed of the bullet around the earth would have to increase in order to keep up with you because it's going around a larger circle.  Of course, if you're going around a sphere, that could also be considered to be in front of you.  Also, I doubt that the bullet would fall at the same speed that it was shot.  I don't think that gravity would get it going as fast as the gun did.
862116
KE = 0.5*m*(v)^2 = 0.5*0.023*(848)^2 = 8269.696 J\n\nThis must = work to accelerate the bullet\n\nW = F*d = 8269.696\n\nF= 8269.696/0.803 = 10298.5 N
365737
Assuming you fire parallel to the ground, then the bullet will be at its maximum horizontal velocity when it leaves the barrel, and will be at minimum vertical velocity.  The bullet cannot increase in horizontal speed once it has left the barrel, as there is nothing to make it accelerate.\n\nDue to air resistance, the horizontal velocity will decrease as the bullet travels further and further.  The vertical velocity will increase, as the gravity of the Earth "attracts" the bullet.
744405
a) (speed is actually closer to 3.97...not a big deal)\n\nb) Conservation of energy:\nThe sum of potential and kinetic energies when the bullet first hits the block and when it is at the top of the swing is the same:\nU(bottom) + K(bottom) = U(top) + K(top)\nNow, the speed at the top is zero, so the ewuation becomes:\nU(bottom) + K(bottom) = U(top)\nSolve for the change in potential energy:\n[U(top) - U(bottom)] = K(bottom)\nThe change in potential energy due to gravity is: (m1+m2)gh\nThe kinetic energy at the bottom is: (1/2)(m1+m2)v²\nSo the equation becomes:\n(m1+m2)gh = (1/2)(m1+m2)v²\nThe (m1+m2) terms cancel:\ngh = (1/2)v²\nSolve for h:\nh = v² / (2g) = 0.8 m
426452
The bullet is spinning at 306,000 RPM. (Revolutions Per Minute) And yes, that's really fast.  :) The example you cite would be toward the outside limit of "normal" rifle cartridges for bullet rotation but it's certainly possible. Most rifles chambered for high velocity cartridges have somewhat slower twist rates.
294744
How big of a bullet?\n\nIf we're talking standard handgun round, It would definitely hurt, but there's not 100% certainty that it would kill them. The terminal velocity of a bullet free-falling is not nearly as fast as a bullet shot from a gun, due to the lack of spiral flight pattern and the wind resistance involved in such a fall.\n\nIt would basically be about the same as dropping a penny off the empire state building, which has been shown by Mythbusters that it won't kill you, but will certainly sting.\n\nNow, if we're talking larger ammo, i think we're definitely getting into the range of being lethal.
718712
that would depend on the firing speed.
10186
Depends on the media in which it propagates. The temperature and the pressure also slightly affect the speed. In air it's about 330 m/s.