Hi,

i'm a third year engineering student and still I haven't got rid of the maths, so a word of advice: start loving maths as you'll need it for the rest of your career.

anyway, here's my problem:

http://img189.imageshack.us/img189/3096/imgelm.jpg

this is strictly speaking a fluid dynamics question, and usually we are given the relationship of the velocity and integrate accordingly. this time though we are given a table and are expect to use summation as a means of integration. I think i have got the hang of it but I still have some doubts, especially for the inner circle. I wrote down my difficult on the paper too.

thanks for the help gurus, much appreciated