Thread: Calculus: Related rates
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Posted 2002-11-13, 04:43 PM in reply to LordZpider's post "Calculus: Related rates"
Quote:
Originally posted by MiNi_MaX
LoL Very simple probleme no need of derivatives

1000=(1/3)*(PI)*(H^3)
H1=9.847450218

You add 10 feet cube for 1 minute

1010=(1/3)*(PI)*(H^3)
H2=9.88016624

H2-H1=.03271602179

The height increase of .03271602179 feet per minute
Again, this is wrong. Your formula finds average increase during that minute. To get the instantaneous velocity, you have to use derivatives.
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