Integration problem regarding parabolic length

Limits, differentiation, related rates, integration, trig integrals, etc.
mightytosave
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Integration problem regarding parabolic length

Postby mightytosave » Wed Jun 04, 2014 12:06 am





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How did the author arrive at his answer? I've been racking my brain around this for days to no avail... :(

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stapel_eliz
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Postby stapel_eliz » Thu Jun 05, 2014 7:18 pm

mightytosave wrote:




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. . . . .

How did the author arrive at his answer? I've been racking my brain around this for days to no avail... :(

What is "Eqn. 4"? What preceded the exercise (such as "the cable" in question)?

Thank you! :wink:

mightytosave
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Re: Integration problem regarding parabolic length

Postby mightytosave » Fri Jun 06, 2014 12:01 am

Thanks for the reply! Eqn. 4 is 8hx/L^2.

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stapel_eliz
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Postby stapel_eliz » Fri Jun 06, 2014 2:13 pm

mightytosave wrote:Eqn. 4 is 8hx/L^2.

Lacking an "equals" sign, this is just an expression, not an equation. What was on the other side of the "equals" sign? How are the various variables defined? Thank you! :wink:

mightytosave
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Re: Integration problem regarding parabolic length

Postby mightytosave » Mon Jun 16, 2014 11:42 pm

Image
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Here is the whole problem. I got lost when integrating eq. (7) on page 2. Thank you for replies! really appreciate them.


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