Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Kinematic Equations - Manipulating them.

  1. Sep 21, 2006 #1
    Hi, I'm new to this forum.

    I need major help on my homework. So the kinematic equation,
    Vf² = Vi² + 2ad

    I need to figure out how to manipulate it so I can find Vf(final velocity), Vi(initial velocity), a(acceleration), and d(displacement).

    I figured to find Vf, you just square root it, but I can't figure out how to get everything else.

    Vi = ?
    a = ?
    d = ?

    Any help will be greatly appreciated. Thanks.
  2. jcsd
  3. Sep 21, 2006 #2
    It's simple algebra, really...

    Vf2 = Vi2 + 2ad
    Vf2 - 2ad = Vi2
    Then square root both sides of the equation, and voila! I'm sure you can figure out a and d for yourself...
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook