OMG PLZ PLZ HELP, Mind blank... I Think I Have to Integrate It...
An oil tanker aground on a reef is losing oil and producing an oil slick that is radiating out at
a rate approximated by the function dr/dt=20/sqrt(t), t >= 1, where r is the radius of the circular slick in metres after t minutes. If the radius of the slick is 21 metres, after 15 seconds, find, to the nearest metre, the radius of the slick after 10 minutes
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OpenStudy (anonymous):
Plz Someone
OpenStudy (zarkon):
integrate your equation
OpenStudy (anonymous):
40*sqrt(t)+constant, now what
OpenStudy (zarkon):
you have to use the initial condition to find the value of c
OpenStudy (anonymous):
KK, 21=40*sqrt(0.25)+c
so c = 1
r=40*sqrt(t)+1
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OpenStudy (zarkon):
yep
OpenStudy (anonymous):
thanks, i cant belive i did not see it thank you soo much
OpenStudy (anonymous):
r=40*sqrt(10)+1=127.491
nerest meter is 127
OpenStudy (zarkon):
yep
OpenStudy (anonymous):
:D
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