Second order differential equation - analytical solution for $frac {d^2x}{dt^2} =frac{A}{f(t)}-B$.












-2














How to find the analytical solution for the following second-order differential equation?




$$frac {d^2x}{dt^2} =frac{A}{f(t)}-B$$




where $f(t)=C t$; $A$, $B$ and $C$ are constants.










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  • 4




    Just integrate twice with respect to $t$?
    – Hans Lundmark
    Dec 10 '18 at 13:01










  • @HansLundmark, So the answer is $frac{BCt^2+2Atln{t}-2At}{2C}$
    – Dhamnekar Winod
    Dec 10 '18 at 13:18










  • That seems right, except for a missing minus sign in front of $BC t^2$.
    – Hans Lundmark
    Dec 10 '18 at 13:24










  • @DhamnekarWinod And integrating constants?
    – Nosrati
    Dec 10 '18 at 13:44
















-2














How to find the analytical solution for the following second-order differential equation?




$$frac {d^2x}{dt^2} =frac{A}{f(t)}-B$$




where $f(t)=C t$; $A$, $B$ and $C$ are constants.










share|cite|improve this question




















  • 4




    Just integrate twice with respect to $t$?
    – Hans Lundmark
    Dec 10 '18 at 13:01










  • @HansLundmark, So the answer is $frac{BCt^2+2Atln{t}-2At}{2C}$
    – Dhamnekar Winod
    Dec 10 '18 at 13:18










  • That seems right, except for a missing minus sign in front of $BC t^2$.
    – Hans Lundmark
    Dec 10 '18 at 13:24










  • @DhamnekarWinod And integrating constants?
    – Nosrati
    Dec 10 '18 at 13:44














-2












-2








-2







How to find the analytical solution for the following second-order differential equation?




$$frac {d^2x}{dt^2} =frac{A}{f(t)}-B$$




where $f(t)=C t$; $A$, $B$ and $C$ are constants.










share|cite|improve this question















How to find the analytical solution for the following second-order differential equation?




$$frac {d^2x}{dt^2} =frac{A}{f(t)}-B$$




where $f(t)=C t$; $A$, $B$ and $C$ are constants.







differential-equations






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Dec 10 '18 at 13:08









Nosrati

26.5k62353




26.5k62353










asked Dec 10 '18 at 12:57









Harish

72




72








  • 4




    Just integrate twice with respect to $t$?
    – Hans Lundmark
    Dec 10 '18 at 13:01










  • @HansLundmark, So the answer is $frac{BCt^2+2Atln{t}-2At}{2C}$
    – Dhamnekar Winod
    Dec 10 '18 at 13:18










  • That seems right, except for a missing minus sign in front of $BC t^2$.
    – Hans Lundmark
    Dec 10 '18 at 13:24










  • @DhamnekarWinod And integrating constants?
    – Nosrati
    Dec 10 '18 at 13:44














  • 4




    Just integrate twice with respect to $t$?
    – Hans Lundmark
    Dec 10 '18 at 13:01










  • @HansLundmark, So the answer is $frac{BCt^2+2Atln{t}-2At}{2C}$
    – Dhamnekar Winod
    Dec 10 '18 at 13:18










  • That seems right, except for a missing minus sign in front of $BC t^2$.
    – Hans Lundmark
    Dec 10 '18 at 13:24










  • @DhamnekarWinod And integrating constants?
    – Nosrati
    Dec 10 '18 at 13:44








4




4




Just integrate twice with respect to $t$?
– Hans Lundmark
Dec 10 '18 at 13:01




Just integrate twice with respect to $t$?
– Hans Lundmark
Dec 10 '18 at 13:01












@HansLundmark, So the answer is $frac{BCt^2+2Atln{t}-2At}{2C}$
– Dhamnekar Winod
Dec 10 '18 at 13:18




@HansLundmark, So the answer is $frac{BCt^2+2Atln{t}-2At}{2C}$
– Dhamnekar Winod
Dec 10 '18 at 13:18












That seems right, except for a missing minus sign in front of $BC t^2$.
– Hans Lundmark
Dec 10 '18 at 13:24




That seems right, except for a missing minus sign in front of $BC t^2$.
– Hans Lundmark
Dec 10 '18 at 13:24












@DhamnekarWinod And integrating constants?
– Nosrati
Dec 10 '18 at 13:44




@DhamnekarWinod And integrating constants?
– Nosrati
Dec 10 '18 at 13:44










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