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Gun and bullet problem

  1. Jan 19, 2015 #1
    If a gun fires a bullet at a velocity v and is then taken aboard a plane travelling at a velocity v and is fired again in the direction of travel ,what is the simplest proof that the bullet's new velocity is now 2v ?
     
  2. jcsd
  3. Jan 19, 2015 #2

    A.T.

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  4. Jan 19, 2015 #3
  5. Jan 21, 2015 #4

    Dale

    Staff: Mentor

    Newton's laws are invariant under a Galilean transformation.
     
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