Amount of Energy from Bullet fired from different weapon

In summary, the amount of energy of a bullet fired by a rifle and a gun with the same linear velocity would be equal since the energy is calculated based on mass and velocity. However, the rifle bullet may have slightly more energy due to its rotational energy. The difference in distance traveled and accuracy between the two bullets is not due to their energy, but rather the rifle bullet's ability to tumble less and experience less air resistance.
  • #1
abrowaqas
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How we differentiate the amount of Energy of a bullet fired by a gun and a rifle with same linear velocity?

do they posses the same energy ? or rifle has more energy than gun.
 
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  • #2
The energy of the bullet would be E = ½·m·v²

So for the same m and v the energy would be equal, regardless of how the bullet was fired.
 
  • #3
hi abrowaqas! :smile:
abrowaqas said:
How we differentiate the amount of Energy of a bullet fired by a gun and a rifle with same linear velocity?

the rifle bullet will have very slightly more energy, since it will also have rotational energy

it travels further (and is more accurate) not because of its energy, but because it tumbles less than the gun bullet, and so has less air resistance :wink:
 

1. How does the amount of energy from a bullet vary between different weapons?

The amount of energy from a bullet can vary greatly between different weapons. This is due to factors such as the type and size of the bullet, the velocity at which it is fired, and the design and function of the weapon.

2. What is the average amount of energy from a bullet fired from a handgun?

The average amount of energy from a bullet fired from a handgun is typically between 300 and 500 foot-pounds, depending on the caliber and type of ammunition used. However, this can vary significantly between different handguns.

3. How does the amount of energy from a bullet affect its stopping power?

The amount of energy from a bullet can greatly impact its stopping power. Generally, a bullet with a higher energy will have more stopping power and be more effective at incapacitating a target. However, other factors such as bullet placement and penetration also play a significant role in stopping power.

4. Does the length of the barrel affect the amount of energy from a bullet?

Yes, the length of the barrel can affect the amount of energy from a bullet. A longer barrel allows for a longer distance for the bullet to accelerate, resulting in a higher velocity and therefore, more energy. This is why rifles, with their longer barrels, typically have more energy than handguns.

5. How can the amount of energy from a bullet be measured?

The energy from a bullet can be measured using a ballistic pendulum or a chronograph. A ballistic pendulum uses the momentum of the bullet to swing a pendulum, which can then be used to calculate the energy. A chronograph measures the velocity of the bullet and uses that to calculate the energy based on the bullet's mass.

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