- #1

- 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 doesnt really help ...

- Thread starter hangainlover
- Start date

- #1

- 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 doesnt really help ...

- #2

- 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

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(try using the X

learn your list of standard integrals from the pf library

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- #5

HallsofIvy

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[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".

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