It would actually be:
$\displaystyle \frac {T_1^2}{r_1^3} = \frac {T_2^2}{4r_1^3}$
$\displaystyle T_2 = \sqrt {(64) (T_1^2)}$
$\displaystyle \boxed {T_2 = 8 T_1}$
So, for the aged man:
$\displaystyle T_1 = 80$
.:.,
$\displaystyle T_2 = (8)(80) = 640 \mbox { "x" years}$
Now, that's what you call a quantitative analysis.
__________________
"Dissent is the highest form of patriotism." - Thomas Jefferson.
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I study Mathematical Physics at the
University of Waterloo.
-DC
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Last edited by Deco; Sep 21st 2009 at 06:52 PM.
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