Why use G units?

  • Thread starter jimgoh
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  • #1
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Why do people use G-units? Essentially it is a ratio of the acceleration with gravity, why not use force directly? Can anyone enlighten me? Thanks.

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  • #2
mgb_phys
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It's only used when talking to the public/media. It's easier to picture eg. a fighter pilot experiencing 5times their normal weight than mass_of_head * 49m/s^2.
 
  • #3
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And you cant use force because its not constant for each body, only the acceleration is. For example I experience a greater force from gravity than my computer, which Im about to drop out the window, does because I have more mass.

I always though it would be cool if they used a z instead of a g because then everyone would sound like they had a german accent.
 

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