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#1 2011-09-07 08:47:43
- ShivamS
- Member
- Registered: 2011-02-07
- Posts: 3,648
Star wars calculus.
Luke Skywalker travels in his X-wing (aircraft from the star wars) along a path C given by the boundary of the area enclosed by a semicircle of radius 3 units, semicircle of radius 1 unit, and the x-axis. A variable force field, created by Darth Vader and given by (2y2)i+(8xy)j --- (i and j are the unit vectors [[1,0]] and [[0,1]]) --- is present. How much work is done on Luke by Vader's force field as he travels completely around the closed loop once? Write your answer as an improper fraction a/b without any units.
I believe its 208/3
Can anyone confirm?
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#2 2011-09-09 08:25:21
- ShivamS
- Member
- Registered: 2011-02-07
- Posts: 3,648
Re: Star wars calculus.
I don't mean to rush anyone, but could someone online possibly help me with this problem, because I have to hand it in quite soon.
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#3 2011-09-09 11:56:23
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Star wars calculus.
Hi;
Had someone look at it. You did not show any work so it is possible you are both making the same mistake. But the fact is a vector calculus guru agreed with your answer.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#4 2011-09-09 13:04:47
- ShivamS
- Member
- Registered: 2011-02-07
- Posts: 3,648
Re: Star wars calculus.
I was not required to show my work for this question, yet I did on the page I was submitting (saw no need to post it here though). And imagine this:
Calculus daily problem.
Shivam - 0/1
I will definitely have to report this to the dean.
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#5 2011-09-09 16:12:12
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Star wars calculus.
They marked you wrong? Can I see their solution? That means the guru got it wrong too!
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#6 2011-09-10 01:59:56
- Shivamcoder
- Guest
Re: Star wars calculus.
The dean said that my answer was correct, and he will be talking to my calculus teacher soon.
#7 2011-09-10 02:02:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Star wars calculus.
Hi;
Good to hear. At least you will be getting it marked right.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#8 2011-09-10 05:48:50
- ShivamS
- Member
- Registered: 2011-02-07
- Posts: 3,648
Re: Star wars calculus.
Yes. Personally, I dislike non-impartial teachers.
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#9 2011-09-10 05:56:42
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Star wars calculus.
It could be worse, non-impartial bosses, and you can not go to the dean.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#10 2011-09-10 06:27:51
- ShivamS
- Member
- Registered: 2011-02-07
- Posts: 3,648
Re: Star wars calculus.
Well, I wouldn't have much problem with them, I suppose. At least less than currently.
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