ideal rocket equation

CTho9305

Elite Member
Jul 26, 2000
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Plenty of people can - people who did their own homework when they were in school... or at least know how to google and click the very first result.
 

KillerCharlie

Diamond Member
Aug 21, 2005
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I've got to say it's NOT rocket science. It's a super easy equation.

I found that astronautics courses were the easiest of my classes in my aerospace engineering education, despite it technically being "rocket science."
 

Gaurav Duggal

Member
Oct 17, 2007
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I googled it and found the derivation but found it hard to understand. I read this equation in a book and wanted to know how it came. I asked my uncle (he was here for 10 days for official work) and he told me to try and derive it using newton's law of conservation of momentum, but I couldn't do it. i just couldn't come to the form I saw in the book. Please anybody derive it using the law of conservation of momentum
 

PottedMeat

Lifer
Apr 17, 2002
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Originally posted by: Gaurav Duggal
I googled it and found the derivation but found it hard to understand. I read this equation in a book and wanted to know how it came. I asked my uncle (he was here for 10 days for official work) and he told me to try and derive it using newton's law of conservation of momentum, but I couldn't do it. i just couldn't come to the form I saw in the book. Please anybody derive it using the law of conservation of momentum

Nobody is going to help you if you say "anybody derive it using the law of conservation of momentum". Asking that implies you just want the answer so you can stick it in your homework. If you said "I don't understand how they got from equation this to that" you'd probably get more assistance.

I skimmed the wikipedia page for Tsiolkovsky's rocket equation and it just looks like they start with the second law of motion in momentum form and substitute initial and final conditions and then theres a final integration.

 

Gaurav Duggal

Member
Oct 17, 2007
92
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well now that I look at it, it does sound like I wanted it for my homework. I'll just print the page from wikipedia and ask my school teacher to explain it to me.