Solve

h 5. The inside of a funnel of height 10 has circular cross sections, as shown above. At height h, the radius of the funnel is given by r= 70 (3th 2 ), where Osh= 10. The unit of r : h are inches. The funnel contains liquid that is draining from the bottom. At the instant where the height of the liquid is has, the radius of the surface of the liquid is decreasing at a rate of5 inches per second. At this instant, what is the change in height with respect to time