That varies depending on the cartridge, and how far the bullet is from the firearm in flight. Bullets are heated both from the explosion of gunpowder, and friction as they are forced up the barrel, but begin to cool very quickly. A physics group made a study of measuring the temperature of a bullet in flight using high speed cameras that could measure temperatures from the infrared light emitted by a hot object. Using a 5.56mm firearm (similar to the M16) they found that the bullet was about 513 degrees F measured about 10 ft from the muzzle.
A bullet fired from a gun
When a bullet is fired upwards vertically it gains kinetic energy.
Case 1The first bullet is fired downwards (towards the ground).The answer is obvious. The bullet fired from the gun will reach the ground faster than the bullet dropped from the same height.This would be because the bullet fired from the gun would have a higher initial velocity. The bullet dropped from the gun will have no initial velocity.Case 2The bullet is fired vertically upwards (away from the ground).Again, obvious. The bullet fired will take a longer time to fall down than the dropped bullet.This is because the bullet has to first travel upwards and then downwards, and hence will have more distance to cover.Case 3The bullet is fired perfectly horizontal.If the bullet is fired perfectly horizontal to the ground, the fired bullet and dropped bullet will hit the ground at the same time.The reason is that the force of gravity is a constant, so the bullet will be pulled down vertically at the same speed, regardless of its horizontal speed.Note for Case 3:In theory, it will do so, but only in a perfect vacuum when the bullet is fired exactly parallel to the ground. The reason for my caveats are that, in a vacuum, there is no air friction, which might tend to affect the fired bullet more than the falling bullet, nor any ability to for the fired bullet to rise aerodynamically (like the wing of an airplane).
The bullet fired from a gun has greater horizontal acceleration. For vertical acceleration, they are both the same.
I used gelatin or a large water tank.
When a bullet is fired into the sky, it will eventually stop becasue it has run out of energy and fall back to the ground.
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.
Wilkes Booth John.
while firing a bullet, the shooter may get a sudden jerk in his/her hands. So, by keeping track of shooters movement, one can determine which bullet was fired first
No. The bullet will actually travel much slower due to wind resistance.