1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Amount of Energy from Bullet fired from different weapon

  1. Apr 25, 2012 #1
    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.
  2. jcsd
  3. Apr 25, 2012 #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.
  4. Apr 25, 2012 #3


    User Avatar
    Science Advisor
    Homework Helper

    hi abrowaqas! :smile:
    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:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook