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Finding range given impact velocity?

  1. Jul 8, 2013 #1
    A projectile shot over level ground hits the ground with a velocity of 65m/s at an angle of 25° below the horizontal. What was the horizontal range of the projectile?
    170m
    330m
    780m
    360m

    If something is launched over a horizontal plane, does Vi=Vf? (same magnitude and velocity) (but different direction obviously).
    Would I then be able to find Vix and Δt to find the Δx (range)?
     
  2. jcsd
  3. Jul 8, 2013 #2

    berkeman

    User Avatar

    Staff: Mentor

    Welcome to the PF.

    Yes, over level ground with no air resistance, the launch and impact velocities and angles should be symmetrical.
     
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