Homework EquationsImplicit Differentiation
The Attempt at a Solution
I have a diagram and I am using the info given to establish some relationships. I guess my main concern is whether I have established a correct relationship between r and y as to eliminate one of them. If I have, am having trouble differentiating the following
V=(pi/3)y^2(3r-y) which after substitution looks like
Does this look like I am on the right track to find both dy/dt and dr/dt at y=8...or am I just making things difficult?