The summation of ....

Dimitri · Super Member Joined: Nov 25, 2005 Posts: 5946

The summation of magnitude of forces about point D = 0

=Ay(6ft) - (4klb)(6ft) + (6klb)(2ft)
=Ay(6ft) - 24klbft + 12klbft / 6ft
Ay = -2klb

Summation M @ A = Fy(6ft) - (4klb)(6ft) - (6klb)(4ft)
=Fy(6ft) - 24klbft - 24klbft / 6ft
=Fy - 8klb
Fy=8klb

Yuck

Dimitri

wiersy111 · Posted: Tue Apr 06, 2010 5:43 pm Post subject: Re: The summation of ....

PaulS · Posted: Tue Apr 06, 2010 8:38 pm Post subject: Re: The summation of ....

Fy=-4klb-4klb
Fy=-8klb
but how do you get from -8klb to 8klb?

gelandangan · Posted: Tue Apr 06, 2010 8:41 pm Post subject: Re: The summation of ....

AAARRRGGHHH!!! That post is evil!! eeeevil!! My head hurts!!

PaulS · Posted: Tue Apr 06, 2010 8:45 pm Post subject: Re: The summation of ....

Unless direction of force is irrelevent......

Does understanding that equation make someone a geek or a nerd???

wiersy111 · Posted: Tue Apr 06, 2010 8:53 pm Post subject: Re: The summation of ....

I ain't even figured out what language ya'll are speaking. My head hurts, I need a beer.

Suzanne · Posted: Tue Apr 06, 2010 9:30 pm Post subject: Re: The summation of ....

He REALLLY needs to have that tooth pulled!! Nuts

Suz

Vince · Posted: Tue Apr 06, 2010 10:26 pm Post subject: Re: The summation of ....

wiersy111 wrote:

I ain't even figured out what language ya'll are speaking. My head hurts, I need a beer.

My shout Wiersay...and I reckon we need to get 'Mitri inta some good Single Malt Whiskey...anything to wash that weird shite outa his head.

Suz wrote:

He REALLLY needs to have that tooth pulled!! Nuts

Never thought of that Suz...the Whiskey will fix that too.

Cheers, Vince

slimjim · Posted: Wed Apr 07, 2010 5:18 am Post subject: Re: The summation of ....

Using Google as a language interpreter

Ay
- Assessment Year (Income Tax (IT) jargon
- was the penultimate Pharaoh of Ancient Egypt's 18th dynasty
- means moon in the 1911 Encyclopædia Britannica
- a Whole New Social Experience – AnonymousYou @ AY.com
- a French word usually used with following me to express sorrow or regret

Fy
- Fiscal Year
- Financial Year
- full-year
- You are an @##hole and someone wanted to say. $*#& YOU. to you in a big way. (words changed to protect the innocent)

Too much “stress” for me!

Suzanne · Posted: Wed Apr 07, 2010 12:20 pm Post subject: Re: The summation of ....

Self regulating gas plug! Slim!! your last words...
Que lastima!! More Booz Vince, I'll get the funnel....

lookin aroun
Suz

Donut Slayer · Posted: Wed Apr 07, 2010 1:19 pm Post subject: Re: The summation of ....

Suzanne wrote:

Self regulating gas plug! Slim!! your last words...
Que lastima!! More Booz Vince, I'll get the funnel....

lookin aroun
Suz

my wife could use one of them self regulating gas plugs. Very Happy

wiersy111 · Posted: Wed Apr 07, 2010 2:03 pm Post subject: Re: The summation of ....

I'm sooooo confused!!!!

stovepipe · Posted: Wed Apr 07, 2010 2:20 pm Post subject: Re: The summation of ....

I'm not confused...after this I'm going by the gun shop to DROS my new 300 Winny I got with my tax return....woot!

Party

wiersy111 · Posted: Wed Apr 07, 2010 2:34 pm Post subject: Re: The summation of ....

I really don't want to talk about tax returns......... my kids are 18 now so I got hosed!

Dimitri · Super Member Joined: Nov 25, 2005 Posts: 5946

PaulS wrote:

Fy=-4klb-4klb
Fy=-8klb
but how do you get from -8klb to 8klb?

0 = Fy - 8klb

So substitution by 8klb a positive or by moving the number to the other side

8klb = Fy

Otherwise by moving Fy over you get

-Fy = -8klb

Therefor you remove the negative signs by multiplying by negative one on both sides.

Guys and Gal,

I had a physics exam today I walked in with 89% but something tells me I screwed this one up after doing it. Hence stressing out last night and this post.

By the way Ay = Point A in the Y axis and Fy is equal to the Y axis force on the point F. Both points on a truss.

And no had not had issues with the tooth for a long while.

Dimitri