- #36
Femme_physics
Gold Member
- 2,550
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I like Serena said:You forgot to take care of the round thingies.
I'm not sure what you mean by "round thingies"!
hunt_mat said:Your mistake is that you said [itex](6t)^{2}=36t^{2}[/itex] and you also want:
[tex]
\frac{dA}{dt}=\frac{dA}{dr}\frac{dr}{dt}
[/tex]
When did I ever say that?
I don't see any inclusion of the rate of change of radius in your work.
I did write
R(t) = 6t