- #1
AquaGlass
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Related Rates Help please!
Two cars start moving from teh same point. One travels south at 60 mi/h and the other travels west at 25 mi/h. At what rate is the distance between the cars increasing two hours later?"
So far I have the equation..
(z^2) = (x^2) + (y^2)
I know dy/dt = 60 mi/h and dx/dt = 25 mi/h.
I implicity differentiated the first equation and ended up with:
dz/dt = (50x +120y)*(1/2z)
Since I do not know what x or y is I am unable to find the rate the distance between the two cars is increasing.
Thank you so much for your help!
Homework Statement
Two cars start moving from teh same point. One travels south at 60 mi/h and the other travels west at 25 mi/h. At what rate is the distance between the cars increasing two hours later?"
Homework Equations
So far I have the equation..
(z^2) = (x^2) + (y^2)
I know dy/dt = 60 mi/h and dx/dt = 25 mi/h.
The Attempt at a Solution
I implicity differentiated the first equation and ended up with:
dz/dt = (50x +120y)*(1/2z)
Since I do not know what x or y is I am unable to find the rate the distance between the two cars is increasing.
Thank you so much for your help!