Thread: Integration Problem for Calculus Homework

I'm having trouble with the following problem from my homework for a Calc. II course:

The velocity v of the flow of blood at a distance r from the central axis of an artery of radius R is,



where k is the constant of proportionality. Find the average rate of flow of blood along a radius of the artery. (Use 0 and R as the limits of integration.)

Any help would be really appreciated, thanks.

EDIT: I should probably clarify: I know how to use integration in order to find the average value of a function over a range. It's integrating the function that I'm stuck on.

Originally Posted by justaguy

I'm having trouble with the following problem from my homework for a Calc. II course:
Any help would be really appreciated, thanks.

EDIT: I should probably clarify: I know how to use integration in order to find the average value of a function over a range. It's integrating the function that I'm stuck on.

what problems are you having?

the integral is:

it is a matter of using the power rule for integrals, nothing too fancy. remember, R and k are constants, r is the variable

Originally Posted by Jhevon

what problems are you having?

the integral is:

it is a matter of using the power rule for integrals, nothing too fancy. remember, R and k are constants, r is the variable

. . . I was assuming R was a variable. This makes more sense now. Thanks.