- #1

hangainlover

- 83

- 0

i thought about all sorts of diff eq solving techniques

but nothing comes up to my mind

dv/(g-(k/m)*v^2)=dt

but it doesn't really help ...

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter hangainlover
- Start date

- #1

hangainlover

- 83

- 0

i thought about all sorts of diff eq solving techniques

but nothing comes up to my mind

dv/(g-(k/m)*v^2)=dt

but it doesn't really help ...

- #2

MaxPlank

- 9

- 0

I think it's quite correct, but there could be some errors in calculation..anyway:

http://spiro.fisica.unipd.it/~mimo/altro/sol.JPG [Broken]

http://spiro.fisica.unipd.it/~mimo/altro/sol.JPG [Broken]

Last edited by a moderator:

- #3

tiny-tim

Science Advisor

Homework Helper

- 25,838

- 256

(try using the X

learn your list of standard integrals from the pf library

- #4

- 5,695

- 2,473

- #5

HallsofIvy

Science Advisor

Homework Helper

- 43,021

- 971

[tex]g- \frac{k}{m}v^2[/tex]

, being a "difference of squares", factors as

[tex](\sqrt{g}- \sqrt{k/m}v)(\sqrt{g}+ \sqrt{k/m}v)[/tex]

and so that function can be integrated by "partial fractions".

Share:

- Last Post

- Replies
- 12

- Views
- 1K

- Last Post

- Replies
- 1

- Views
- 832

- Last Post

- Replies
- 28

- Views
- 932

- Replies
- 7

- Views
- 1K

- Last Post

- Replies
- 7

- Views
- 853

- Replies
- 1

- Views
- 575

- Replies
- 10

- Views
- 1K

- Replies
- 2

- Views
- 413

- Replies
- 2

- Views
- 694

- Replies
- 5

- Views
- 337