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Homework Help: What does fraction of G mean? (SI units)

  1. Aug 27, 2006 #1
    I have search my gigantic physics book everywhere for this but I can't seem to find it...does anyone know what it means

    Seee the problem is
    What constant acceleration, in SI units, must a car have to go from zero to 71.0 mph in 13.0 s? I solved that it was 2.44 m/s^2
    but then it askes What fraction of g is this?
    I have know clue what that means except it is post to be a percent....
    please explain what g means
  2. jcsd
  3. Aug 28, 2006 #2


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    Staff Emeritus
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    g is acceleration due to gravity, 9.81 [itex] \frac m s [/itex]
  4. Aug 28, 2006 #3
    Thank you so much
  5. Aug 28, 2006 #4


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    Staff: Mentor

  6. Jan 14, 2009 #5
    Can someone explain HOW to solve it?
    I understand that g=gravity=9.81. So what now? How do it solve the fraction?
    I know it is not 9.81/acceleration or acceleration/9.81....
  7. Jan 14, 2009 #6


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    Gold Member

    Well since g * fraction = a, what does that tell you about your fraction?
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