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Homework Help: Projectile Question

  1. Nov 20, 2005 #1
    As far as motion on the X-Axis, why typically are the initial velocity and final velocity values the same?
     
  2. jcsd
  3. Nov 20, 2005 #2

    lightgrav

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    Homework Helper

    because the Force that causes acceleration (in projectile motion)
    is the pull of Earth's gravity applied to the projectile.
    This Force is Downward (by definition!) so the acceleration is, too.
    So the other two acceleration components are zero.
     
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