high G forces

[b3lha]

Originally posted by Ron Mummert




'scuse me, but wouldn't the water bucket scenario be an example of centriFUGAL force? I ain't never done hear'ed of CentriPETAL force before, but it must exist if Lee & Green say it does.

Ron (all I know is engineers drive trains).

CentriFUGAL force is not really a force, it's just conservation of momentum - Newton's first law.

You see, as you swing a bucket, it is continually wanting to carry on in a straight line away from you. But it can't because your arm is exerting a CentriPETAL force to hold it back.

[lee]

Originally posted by SVXRide
Lee,
Not to hijack your thread, but isn't your Avatar one of the Trident/Poseiden test launches gone bad off the Florida coast?
-Bill (remembering back to his days as an engineer for the Navy)

That's OK (the highjacking), this thread wasn't all that to begin with.

Yes it is...I work for the Air Force at Cape Canaveral on the range and launch complex side - as opposed to the booster or payload people.

[lee]

Originally posted by b3lha


CentriFUGAL force is not really a force, it's just conservation of momentum - Newton's first law.

You see, as you swing a bucket, it is continually wanting to carry on in a straight line away from you. But it can't because your arm is exerting a CentriPETAL force to hold it back.

Well, you might be right scientifically, but then again... when I did a web search for centrifugal force this is what Google gave me:

"Centrifugal Force is a group of men in SF dedicated to promoting the art of Flagging." Web page reference is: http://www.cforcesf.com/

[GreenMarine]

I guess he got the answer he wanted... Cool an engineer and a physicist can work together in harmony

I understand the concepts, I just never thought about applying them to wheels.


Dave

Originally posted by GreenMarineSVX
Gravity is a way to explain acceleration... What happens if you jump off a building?? you ACCELERATE twards the ground...

....at 32 ft./sec/sec until terminal velocity...I rememebr that. But after that you are no longer accelerating.

[Andy]

....until you hit the ground, then it becomes deceleration.

[b3lha]

Originally posted by Andy
....until you hit the ground, then it becomes deceleration.

You mean negative acceleration.

[Andy]

Originally posted by b3lha

You mean negative acceleration.

of course, according to Einstein, you could be stationary, it could be the ground accelerating towards you, in which case you would experience acceleration upon impact

[oab_au]

So if one person jumps off a 20 story building, and another person jumps off a 100 story building, assuming they both weigh the same, and have the same frontal area. Does the earth move the same amount.?

Harvey

[Andy]

Originally posted by oab_au
So if one person jumps off a 20 story building, and another person jumps off a 100 story building, assuming they both weigh the same, and have the same frontal area. Does the earth move the same amount.?

Harvey

In relation to what?

[oab_au]

Originally posted by Andy


In relation to what?

The sun of course.

Harvey.

[Andy]

Originally posted by oab_au


The sun of course.

Harvey.

it depends on whether it is night or day when they jump.

[oab_au]

Originally posted by Andy


it depends on whether it is night or day when they jump.

OK, That question was too hard I guess

My next question. Why does the Moon look larger on the horizon, than when it is over head.?

Harvey.

Refraction of light through the atmosphere.



Or, since the moon is made of cheese it could be swelling up as it nears the ocean over that way.