Fixed an error in kinematic differential equations.
Fixed an error in kinematic differential equations.

moble/sympy,liangjiaxing/sympy,sampadsaha5/sympy,ahhda/sympy,debugger22/sympy,atsao72/sympy,souravsingh/sympy,atreyv/sympy,skidzo/sympy,cccfran/sympy,skirpichev/omg,hargup/sympy,yukoba/sympy,kevalds51/sympy,kmacinnis/sympy,wanglongqi/sympy,debugger22/sympy,asm666/sympy,srjoglekar246/sympy,cswiercz/sympy,hargup/sympy,hrashk/sympy,aktech/sympy,jamesblunt/sympy,maniteja123/sympy,liangjiaxing/sympy,skidzo/sympy,sahilshekhawat/sympy,Titan-C/sympy,abhiii5459/sympy,lidavidm/sympy,Shaswat27/sympy,MridulS/sympy,vipulroxx/sympy,wyom/sympy,grevutiu-gabriel/sympy,MechCoder/sympy,lidavidm/sympy,kumarkrishna/sympy,kumarkrishna/sympy,dqnykamp/sympy,asm666/sympy,garvitr/sympy,chaffra/sympy,atreyv/sympy,kevalds51/sympy,ahhda/sympy,moble/sympy,rahuldan/sympy,Designist/sympy,yashsharan/sympy,kaushik94/sympy,AkademieOlympia/sympy,AunShiLord/sympy,maniteja123/sympy,kumarkrishna/sympy,atreyv/sympy,aktech/sympy,oliverlee/sympy,jerli/sympy,postvakje/sympy,abhiii5459/sympy,sahmed95/sympy,VaibhavAgarwalVA/sympy,kaushik94/sympy,vipulroxx/sympy,abloomston/sympy,souravsingh/sympy,Gadal/sympy,Sumith1896/sympy,Davidjohnwilson/sympy,Designist/sympy,Shaswat27/sympy,kaichogami/sympy,shikil/sympy,toolforger/sympy,abloomston/sympy,ChristinaZografou/sympy,cccfran/sympy,saurabhjn76/sympy,Mitchkoens/sympy,MechCoder/sympy,drufat/sympy,sunny94/temp,kmacinnis/sympy,kevalds51/sympy,jbbskinny/sympy,jerli/sympy,oliverlee/sympy,farhaanbukhsh/sympy,pbrady/sympy,Davidjohnwilson/sympy,garvitr/sympy,MridulS/sympy,sunny94/temp,sunny94/temp,Titan-C/sympy,abhiii5459/sympy,mcdaniel67/sympy,kaichogami/sympy,beni55/sympy,shipci/sympy,beni55/sympy,diofant/diofant,mcdaniel67/sympy,dqnykamp/sympy,skidzo/sympy,emon10005/sympy,Gadal/sympy,Shaswat27/sympy,mafiya69/sympy,beni55/sympy,AunShiLord/sympy,jbbskinny/sympy,oliverlee/sympy,emon10005/sympy,kaichogami/sympy,pandeyadarsh/sympy,cswiercz/sympy,jaimahajan1997/sympy,AkademieOlympia/sympy,Arafatk/sympy,ChristinaZografou/sympy,postvakje/sympy,atsao72/sympy,pandeyadarsh/sympy,abloomston/sympy,ga7g08/sympy,pbrady/sympy,toolforger/sympy,moble/sympy,meghana1995/sympy,mafiya69/sympy,debugger22/sympy,pbrady/sympy,amitjamadagni/sympy,ga7g08/sympy,shikil/sympy,toolforger/sympy,bukzor/sympy,lindsayad/sympy,ga7g08/sympy,chaffra/sympy,aktech/sympy,saurabhjn76/sympy,sahilshekhawat/sympy,Titan-C/sympy,maniteja123/sympy,Curious72/sympy,sampadsaha5/sympy,liangjiaxing/sympy,lidavidm/sympy,sampadsaha5/sympy,yashsharan/sympy,sahmed95/sympy,Sumith1896/sympy,jaimahajan1997/sympy,farhaanbukhsh/sympy,drufat/sympy,VaibhavAgarwalVA/sympy,Curious72/sympy,iamutkarshtiwari/sympy,sahilshekhawat/sympy,Gadal/sympy,iamutkarshtiwari/sympy,garvitr/sympy,kmacinnis/sympy,cswiercz/sympy,iamutkarshtiwari/sympy,mcdaniel67/sympy,ChristinaZografou/sympy,lindsayad/sympy,Davidjohnwilson/sympy,VaibhavAgarwalVA/sympy,Vishluck/sympy,jamesblunt/sympy,bukzor/sympy,chaffra/sympy,madan96/sympy,hrashk/sympy,hrashk/sympy,grevutiu-gabriel/sympy,farhaanbukhsh/sympy,Mitchkoens/sympy,yukoba/sympy,rahuldan/sympy,wanglongqi/sympy,amitjamadagni/sympy,madan96/sympy,MridulS/sympy,meghana1995/sympy,AkademieOlympia/sympy,bukzor/sympy,flacjacket/sympy,Arafatk/sympy,lindsayad/sympy,kaushik94/sympy,mafiya69/sympy,Sumith1896/sympy,drufat/sympy,saurabhjn76/sympy,MechCoder/sympy,wyom/sympy,jamesblunt/sympy,postvakje/sympy,wanglongqi/sympy,shikil/sympy,jbbskinny/sympy,meghana1995/sympy,Designist/sympy,ahhda/sympy,emon10005/sympy,wyom/sympy,dqnykamp/sympy,asm666/sympy,vipulroxx/sympy,Arafatk/sympy,atsao72/sympy,cccfran/sympy,Mitchkoens/sympy,madan96/sympy,jaimahajan1997/sympy,Vishluck/sympy,jerli/sympy,pandeyadarsh/sympy,AunShiLord/sympy,rahuldan/sympy,hargup/sympy,yashsharan/sympy,shipci/sympy,Curious72/sympy,Vishluck/sympy,sahmed95/sympy,grevutiu-gabriel/sympy,souravsingh/sympy,shipci/sympy,yukoba/sympy