A Coffee Pot A coffee pot in the form of a circular cylinder of radius 2 in. is being filled with water flowing at a constant rate. If the water level is rising at the rate of 0.2 in./s, what is the rate (in in3/s) at which water is flowing into the coffee pot?

Respuesta :

Answer:

[tex]0.8\pi in^3/s[/tex]

Step-by-step explanation:

We are given that

Radius of cylinder,r=2 in

dh/dt=0.2 in/s

We have to find the rat at which water is flowing into the coffee pot

We know that

Volume of cylinder=[tex]V=\pi r^2 h[/tex]

[tex]\frac{dV}{dt}=\pi(r^2 \frac{dh}{dt}+2rh\frac{dr}{dt})[/tex]

dr/dt=0

Substitute the values

[tex]\frac{dV}{dt}=\pi ((2)^2\times 0.2+0)=0.8\pi in^3/s[/tex]

Hence, the rate at which water is flowing into the coffee pot=[tex]0.8\pi in^3/s[/tex]