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Do I have the right formula?

  1. Nov 21, 2004 #1

    DB

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    Translational Kinetic Energy
    KE= 1/2 x Mass x Velocity^2 ???

    So if an object with a mass of 25 kg was traveling at 50 m/s it would have KE: 31250 ? [1/2 x 25 x (50^2)]= 31250

    Is this right???

    Ty
     
  2. jcsd
  3. Nov 21, 2004 #2
    That is correct. But don't forget the units of the answer,,otherwise it has no meaning.
     
  4. Nov 21, 2004 #3

    DB

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    lol thanks, what is the unit of kinectic energy ? lol
     
  5. Nov 21, 2004 #4

    Doc Al

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    Staff: Mentor

    In the system of units of your problem (SI units), energy is measured in Joules.
     
  6. Nov 21, 2004 #5

    DB

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    Ah didn't know that, i thought joules were just work or energy not kinectic mechanical or potential, thanks
     
  7. Nov 22, 2004 #6
    Work and energy are identical. One is just the sum of the other, between specified limits.
     
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