- #1

Jzhang27143

- 38

- 1

## Homework Statement

Given a semi-infinite stick (that is, one that goes off to infinity in one direction), determine how its density should depend on position so that it has the following property: If the stick is cut at an arbitrary location, the remaining semi-infinite piece will balance on a support that is located a distance l from the end.

__http://www.personal.kent.edu/~fwilliam/Chapter 1 Statics.pdf__- Problem 18

## Homework Equations

T = r x F

## The Attempt at a Solution

In the linked solution, I understand the setup, but I do not understand how to find the derivative of the integral with respect to x0. Can someone give me a more detailed explanation of this step?