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What will be the final velocity of a 5.0 g bullet starting from rest if a net force of 45 N is applied over a distance of 0.80 m?
Wiki User
∙ 8y ago
120 ms^-1.
Wiki User
∙ 8y ago
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What happens to k.e. of a bullet when ita penetrates into a target?
When the bullet penetrates into an object its velocity decreases very much or becomes 0 suddenly. This causes a change a momentum of bullet and impulse is applied. Technically the kinetic energy is converted to potential as a deformation occurs inside that object, transferring some of the kinetic energy into the object.
How far does a bullet travel horizontally before gravity has an effect and takes over Is Newtons law correct that the bullet will hit the ground at the same time if it were simply dropped?
Gravity has an effect the instant the bullet leaves the barrel. The bullet starts to fall towards the earth at the same rate as the dropped bullet. However, (assuming the ground follows the curve of the earth, or you are shooting over water) the dropped bullet will hit the ground/water first. The reason is that the as the fired bullet falls the ground is receding away from it (the curve of the earth). The extreme example of this is: the bullet is fired fast enough that as it falls, the curve of the earth is 'falling' continuously away below it; we would say this bullet is now in orbit around the planet. However, if the ground you are shooting over is 'flat' (i.e. flat like a ruler, NOT following the curve of the earth) then: yes, the two bullets will hit the ground at the same time.
A bullet is shot horizontally from a gun at 275ms How much does the bullet drop in flight if the targey is 50m away?
The bullet dropped .1612 meters. To solve this type of problem, first determine how much time it took the bullet to travel to the target. Since Velocity = Distance / Time, Time = Distance / Velocity. In this problem Time = (50 m) / (275 m/s) = .1818 seconds. Now use this time to figure out how far the bullet would have fallen due to gravity. You've probably seen this equation (or something like it) before: Δy = vo*t - 1/2 * g * t2. This equation means that to find how far the bullet fell you need to know how long it was falling, how fast it was falling at the very beginning, and what the acceleration due to gravity is. We already figured out how long the bullet was falling, we know that it wasn't falling at all at the very beginning, and gravity = 9.8 m/s2. This means that: t = .1818 vo = 0 g = 9.8 So plug that in to the previous equation: Δy = (0) * (.1818) - (1/2) * (9.8) * (.1818)2. Δy = - .1612, with the - sign meaning the bullet went down and not up into the air.
Do missiles travel faster than sound?
yes, Even a rifle bullet may travel faster than sound, but even then, it cannot reach escape velocity. Rockets seem to have beaten the escape velocity problem. A space missile will travel more than 11.2 km/s, which is about 10 times the speed of a bullet. +/- [Sound velocity ~ 330m/s.] The first body to leave the Earth was the Sputnik.
Is there really a spot on your brain if you get hit it explodes?
No, there is not a specific spot. The issue has more to do with the size of the bullet and how close it was when fired. Type of bullet and velocity.
Why does a bullet shoot out with very high velocity even when less force is applied?
That description is not quite accurate. The muzzle velocity of the shot definitely does depend on the size of the powder charge. I believe, however, that the difference is not the 'force' of the burning charge, but rather the time during which the force is applied to it before the bullet exits the barrel.
How much is the bullet drop of a 338 Lapua Magnum?
Depends on muzzle velocity, projectile weight and distance.
When a rifle with a longer barrel is fired the force of expanding gases acts on the bullet for a longer distance what effect does this have on the velocity?
To a point, the velocity of the bullet will increase. However, at some point, the gasses driving the bullet have maxed out, and beyond that point, the bullet will begin to slow from friction with the barrel. For a .22 LR cartridge, that length is about 12 inches. Larger cartridges have a greater "Max velocity" length, but there is a point of no more gain, and the start of loss of velocity.
During the training, a police fired a bullet to a 10 cm thick wooden board. The bullet loses half of it's velocity after penetrating 3cm. Question: How much distance the bullet will penetrate more?
6cm
How much will a 300 bullet drop at 500 yards?
That is going to vary based on what kind of "300" you are using, what the type and weight of the bullet is, what your initial velocity is, and at what distance you are sighted in for your far zero.
If you shoot a gun up what is the velocity of the bullet coming down?
The velocity of a bullet coming down from altitude is the terminal velocity of the bullet fired. Since not all bullets are equal in mass, it would depend on the grain (weight) of the bullet fired, the caliber of the bullet, and the charge behind the bullet (which would determine the highest possible altitude it could reach). To determine the terminal velocity of any bullet, you must first know these variables and plug in those variables to the equation below: That is, * Vt = terminal velocity * m= mass of the bullet * g = gravitational acceleration * Cd = drag coefficient (wind resistance applied to the bullet as it falls) * ? = denisty of the medium through which the bullet is falling (the atmosphere) * A = projected area of the bullet (which can get complicated due to the shape of the ball). Essentially, the following is true: any bullet fired straight upward is not only potentially but very likely as deadly to anyone it might strike when it lands as if that same bullet were fired directly at that person.
What is the Difference between muzzle velocity and recoil velocity?
muzzle velocity is the velocity of bullet and recoil velocity is the velocity of gun.
Define trAjectory of the bullet velocity of the bullet velocity?
Bullet trajectory is the path the bullet travels once it leaves the barrel. Bullets travel on a long arch and cross the line of sight twice. Once shortly after leaving the barrel and once again on target assuming the sights are properly zeroed. This is the trajectory of the bullet. Bullet velocity is the speed at which the bullet is traveling along it's trajectory.
How long does it take a bullet to reach a human body?
That's going to depend on the muzzle velocity of the bullet as it leaves the gun, the distance between the shooter and the intended victim, and on how fast the intended victim turns and runs.
How does a bullet fired from a gun have ahigh momentum?
Momentum = mass x velocity A bullet has a high momentum because its velocity is really high.
How long would it take a 50 cal sniper to hit a target 1.5 miles away?
If the sniper was firing a standard 647gr full metal jacket projectile at a standard velocity of 2850 feet per second,and there is 5280 feet per mile.then we are looking at a distance of 7,920 ft. and a diminishing velocity as the distance grows.i would assume it would take a bullet flight of 6-8seconds for the bullet to travel this distance.
If you throw a bullet into a fire and it goes off will it travel far?
No. It depends upon the bullet of course, but a handgun bullet usually won't hurt you if it hits you under those conditions. Another answer: Depends on the cartridge: Remember that this is deadly because the bullet and cartridge will go in opposite directions at great speeds. The larger the bullet and powder will determine the velocity and distance.
