A conical paper cup 4inches across the top and 6 inches deep leaks water at a rate of 1 cubic inch per minute. at what rate does the water level drop (a) when the water is 3 inches deep? (b) when the cup is half full?
A conical paper cup 4inches across the top and 6 inches deep leaks water at a rate of 1 cubic inch per minute. at what rate does the water level drop (a) when the water is 3 inches deep? (b) when the cup is half full?
a) It's given that . We know that and . We also know that, by similar triangles, implies that .