How fast is it rising

Calculus Level 3

Sand is being dumped from a dump truck at the rate of 10 ft 3 /min \text{10 ft}^3 \text{/min} and forms a pile in the shape of a cone whose height is always half its radius. How fast is its height rising when the pile is 5 ft \text{5 ft} high?


The answer is 1.

Aunkur Das Shanto by Aunkur Das Shanto , 23, Bangladesh

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Aunkur Das Shanto
Apr 18, 2019

0 Helpful 0 Interesting 1 Brilliant 0 Confused

I got the same result, but for some reason the posted answer is 1 1 rather than 1 10 π \dfrac{1}{10\pi} .

Brian Charlesworth - 2 years, 1 month ago

I got that too but it said it had to be an integer so I just guessed the closest integers to the answer.

Charley Shi - 2 years, 1 month ago

2 pending reports

Vote up reports you agree with

×

Problem Loading...

Note Loading...

Set Loading...