Recent content by snowcover

Thanks. I separated vector r into x and y components, integrated, and I got it. I guess my first attempt did not work because even though I tried to do a conversion at the end...I needed to integrate r as a vector first because its components change as the angles change.

Homework Statement Homework Equations Please see attachment to #3. The Attempt at a Solution Apparently, the answer is Y= 4R/(3*pi). Why?