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Need help with an equation
Posted: Sun Jan 01, 2012 5:18 am
by Fahim
I didn't where to post this, but anyway I was reading Zafar Iqbal's book on theory of relativity @
http://www.deshiboi.com/listing_summery ... ing_id=581 and One thing I didn't get is this at page 11 it says
- the page I'm talking about
- Untitled.png (402.6KiB)Viewed 4578 times
\[t=\frac{\sqrt{v^2t^2+D^2}}{c}\]
that can also be written as
\[c^2t^2=v^2t^2+D^2\]
or
\[c^2-v^2=D^2\]
How do you get the third result \[c^2-v^2=D^2\] from?
I know I am missing something, can you guys help me? Thanks
Re: Need help with an equation
Posted: Sun Jan 01, 2012 10:53 pm
by Moon
Apparently this is a typo. We have $(c^2-v^2)t^2=D^2$. In fact, $c^2-v^2=D^2$ is dimensionally incorrect.
Re: Need help with an equation
Posted: Sun Jan 01, 2012 11:02 pm
by sm.joty
আমার জানা মতে এটা একটা প্রিন্টিং মিস্টেক। (মুন ভাই যেটা বলল)
খেয়াল করলে দেখবা মিউওন এর কথা লেখার সময় কিন্তু এমন একটা ভুল আছে।
Re: Need help with an equation
Posted: Sun Jan 01, 2012 11:58 pm
by Fahim
Thanks so much @Moon and @sm.joty
It makes sense now. @sm.joty can you also tell me typo for Muon, Thanks!
Re: Need help with an equation
Posted: Mon Jan 02, 2012 1:46 am
by sm.joty
Actually at this moment I haven't the book. So can't help you now but if you read carefully all the equation then you will find a bug in "MUON".
Re: Need help with an equation
Posted: Wed Jan 04, 2012 12:01 pm
by sm.joty
sm.joty wrote:Actually at this moment I haven't the book. So can't help you now but if you read carefully all the equation then you will find a bug in "MUON".
Oups there's a grammatical mistake.
Whatever actually this time I don't have this book so I can't help you @Fahim.
