[DMCForum] Re: You're both wrong! Attn: Rick/Martin
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[DMCForum] Re: You're both wrong! Attn: Rick/Martin



I can not believe I am allowing myself to be pulled into this
nonsense but I have a question. I am NOT arguing, I only seek
enlightenment.

Rick you stated that if you hold a torque wrench at 20 ft/lbs. for an
eternity no work is being done as long as you don't turn the bolt.

In order to hold the torque wrench to 20 ft/lbs. that requires the
expenditure of energy. Is not the expenditure of energy by
definition, work?

Well, maybe not. Supposed you tied the handle to something to hold
the wrench. Then no one & nothing is expending energy. There -is-
however, "potential" energy in the tension of the wrench handle. If
the rope snapped, and the wrench flew off that would be latent?
energy (energy in use/motion) and work would be done because the
wrench moved.

Now I'm all screwed up. I knew this was a bad idea. Help?

Rich A.



--- In DMCForum@xxxxxxxxxxxxxxx, "twinenginedmc12"
<twinenginedmc12@xxxx> wrote:
> Hi Farrar. 
>
> You're wrong!!!!!!! Muahahhahahhah!!!!!!! Oops, I spelled
> Muahahhahahhah wrongly.
>
> --- In DMCForum@xxxxxxxxxxxxxxx, "Farrar Hudkins" <fhudkins@xxxx>
> wrote:
> > I'm laughing hysterically as I write this.
> >
> > Bill said:
> >
> > > Torque *IS* power.
> >
> Bill is wrong.  Torque is force.  I can hold 20lbft of torque on a
> wrench for fifteen minutes, and do no work if the wrench doesn't
turn
> the bolt.
>
>
> > Then Martin said:
> >
> > > No it isn't. Power is a product of torque and speed.
> >
> Martin is right.  If my 20lbft of torque on my wrench results in
the
> bolt turning, all of a sudden I'm doing work, and the rate at which
I
> do that work is the power I'm expending on it.
>
>
> > The late James Watt said:
> >
> > Power = Work / Time
>
> Watt is right.
> Since work is force * distance, torque is a force, speed as used by
> Martin means rotations/time, work equals torque*rotations, and
power
> equals torque*rotations/time.  Martin's and Watt's equations look
> different, but they're equivalent.
>
> Rick.
>
>
> >
> > How about a nice warm cup of ...
>
> Hot chocolate.  Mmmmm.
> >
> > LOL > Farrar
> >
> I'm laughing too. Why does everybody care so much about being
wrong. 
> If I'm not wrong once a day, I'm not trying hard enough.
>
> Rick.



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