calculus related rates

Question

Sand is falling from a conveyor at a rate of 28 ft3/min onto the top of a conical pile. The height of

the pile is always 1⁄2 of the base diameter. How fast is the height changing when the pile is 12 feet

high?

Answer 1

Hi Max,

Here is a video of the solution to your problem. I hope this helps!

Jennifer Jacobson