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Author Topic: Math question [Locked]
ZartanAround  3 stars
Title: Torpid Curmudgeon
Posts: 768
Registered: 2004-2-6 20:54:09
 Date Posted: 1/1/00 12:00am Subject: Math question
despite the fact that you've put it in a meaningful context,
i still doubt that friar ever had any idea what it was he is asking.

 

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Walker_ID  3 stars
Posts: 673
Registered: 2002-5-29 10:20:09
 Date Posted: 1/1/00 12:00am Subject: Math question
ZartanAround posted:
yes i agree, he is differentiating between how much something weighs and how
much it "feels" like it weighs.... minuscule.



nah...the weight of a car is pretty big...but the force to move it makes it feel much lighter than it is (thanks to wheels)


the difference in weight and how hard something is to move(feeling lighter) can be huge depending on many variables....the whole objects in motion crap and all the other physics argle blargle i'm not going to attempt to recall this late at night

 

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eodoll  4 stars
Posts: 1,028
Registered: 2002-2-14 12:35:42
 Date Posted: 1/1/00 12:00am Subject: Math question
It made more sense when he mentioned pulling the bucket from he well.

Edit: the concept of jacks always amazes me, how you can lift something so heavy with a simple twist of a bolt.
Groucho48  3 stars
Posts: 821
Registered: 2003-10-22 03:00:14
 Date Posted: 1/1/00 12:00am Subject: Math question
If it is at the end of a long rope and it starts swinging around, that might make it seem heavier. Because some of your lifting power is being used for horizontal movement rather than all of it going to vertical movement. Other than that, except for a minimal decrease in gravity as it moves upward, 40 pounds is 40 pounds.

 

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Sea_of_inK  2 stars
Posts: 488
Registered: 2004-10-18 12:57:37
 Date Posted: 1/1/00 12:00am Subject: Math question
lol

since I don't see it mentioned..

I think the weight of the rope would make a difference. It would make the weight more than 40lbs, but should lessen as you pull the rope toward you and drop the slack.

 

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Koneg  3 stars
Title: Evil Genius
Posts: 894
Registered: 2001-12-4 15:31:28
 Date Posted: 1/1/00 12:00am Subject: Math question
Walker_ID posted:
and your statement isn't true in any case....weight changes based on the distance between the center of the objects in question....the further apart they are the less they weigh...the change in weight might be minuscule but there is a change

Hola Crap. I could actually feel the brain cells die as I read that.


40lb bucket 2" off the ground or at the end of a 1000 foot rope still weighs exactly 40 pounds. The weight will not change unless and until you change the force of gravity. That won't happen until you get at least 5 miles up, and even then you're talking about a reduction of less than one half of one percent of the weight due to increased altitude.


Walker_ID posted:
nah...the weight of a car is pretty big...but the force to move it makes it feel much lighter than it is (thanks to wheels)


the difference in weight and how hard something is to move(feeling lighter) can be huge depending on many variables....the whole objects in motion crap and all the other physics argle blargle i'm not going to attempt to recall this late at night

All that "argle blargle" is referring to inertia, and how much energy is required to overcome it.


That has nothing to do with the weight of the bucket, because 40 pounds is 40 gawd damn pounds.

 

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ZartanAround  3 stars
Title: Torpid Curmudgeon
Posts: 768
Registered: 2004-2-6 20:54:09
 Date Posted: 1/1/00 12:00am Subject: Math question
Walker_ID posted:
ZartanAround posted:
yes i agree, he is differentiating between how much something weighs and how
much it "feels" like it weighs.... minuscule.



nah...the weight of a car is pretty big...but the force to move it makes it feel much lighter than it is (thanks to wheels)


the difference in weight and how hard something is to move(feeling lighter) can be huge depending on many variables....the whole objects in motion crap and all the other physics argle blargle i'm not going to attempt to recall this late at night



now there is a car involved? are you on drugs?

 

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Friarspam  3 stars
Posts: 638
Registered: 2007-1-23 07:01:27
 Date Posted: 1/1/00 12:00am Subject: Math question
ok I can see that either I'm not being clear on what I want to know or we're moving down assinine highway so I'll try again:


If a given weight is lifted straight up how much does the weight appear to the person doing the lifting?

Example: 40 lb lifted from the surface of the weight -vs- 40 lb lifted feom 20 foot.

now, I know that 40 lbs does not "change", but how much does it FEEl like is being moved. Also, before someone asks, I don't know the elevation, barometeic pressure, temperature and the rope is magic and weighs nothing for the purpose of this question.

/this thread is like trolling myself lol

 

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eodoll  4 stars
Posts: 1,028
Registered: 2002-2-14 12:35:42
 Date Posted: 1/1/00 12:00am Subject: Math question
Lol i dontthink he means 20 ft high.
ZartanAround  3 stars
Title: Torpid Curmudgeon
Posts: 768
Registered: 2004-2-6 20:54:09
 Date Posted: 1/1/00 12:00am Subject: Math question
Koneg posted:
Walker_ID posted:
and your statement isn't true in any case....weight changes based on the distance between the center of the objects in question....the further apart they are the less they weigh...the change in weight might be minuscule but there is a change

Hola Crap. I could actually feel the brain cells die as I read that.

40lb bucket 2" off the ground or at the end of a 1000 foot rope still weighs exactly 40 pounds. The weight will not change unless and until you change the force of gravity. That won't happen until you get at least 5 miles up, and even then you're talking about a reduction of less than one half of one percent of the weight due to increased altitude.


Walker_ID posted:
nah...the weight of a car is pretty big...but the force to move it makes it feel much lighter than it is (thanks to wheels)


the difference in weight and how hard something is to move(feeling lighter) can be huge depending on many variables....the whole objects in motion crap and all the other physics argle blargle i'm not going to attempt to recall this late at night

All that "argle blargle" is referring to inertia, and how much energy is required to overcome it.

That has nothing to do with the weight of the bucket, because 40 pounds is 40 gawd damn pounds.



this.

metal face to the rescue.

 

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