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Re: Is This Correct?

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On 8/26/2015 9:59 AM, hdblenner@gmail.com wrote:
> The weight, w, of an object equals its mass, m, multiplied by the acceleration of
> gravity, g. This result follows from the law of motion, f = m a, where the acceleration,
> a, is the acceleration of gravity, g, and the force, f, equals the weight.
>
> So a proper calculation of momentum would have divided the weight by the acceleration of
> gravity and multiplied this quotient by the speed. In this case the dimensions of the
> momentum become [ pound / ( foot per second squared) ] foot per second = pound second,
> which is a proper unit for the action of momentum.

Sticking to pound as a unit of force, I don't see a problem with this.
Have to be careful about the casual use of pound as a unit of mass.

There is an imperial unit for mass called a slug, which is indeed a 
pound second squared per foot. And so a slug foot per second is 
equivalent to a pound second.


-- 
Odd Bodkin --- maker of fine toys, tools, tables

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Is This Correct? hdblenner@gmail.com - 2015-08-25 03:48 -0700
  Re: Is This Correct? Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-25 13:52 +0200
    Re: Is This Correct? hdblenner@gmail.com - 2015-08-26 07:59 -0700
      Re: Is This Correct? Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-26 17:23 +0200
        Re: Is This Correct? R Kym Horsell <kym@kymhorsell.com> - 2015-08-26 15:45 +0000
          Re: Is This Correct? Sam Wormley <swormley1@gmail.com> - 2015-08-26 11:23 -0500
      Re: Is This Correct? Odd Bodkin <bodkinodd@gmail.com> - 2015-08-26 11:28 -0500
        Re: Is This Correct? Poutnik <poutnik4nntp@gmail.com> - 2015-08-26 20:27 +0200
      Re: Is This Correct? "nuny@bid.nes" <Alien8752@gmail.com> - 2015-08-26 10:20 -0700

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