- #1

- 15

- 0

## Homework Statement

## Homework Equations

one dimensional Reynold's transport theorem

## The Attempt at a Solution

I started with this equation, and tried to expand it using the equation given in #2.

This is the farthest I have gotten so far. I got stuck from here. I do not know how to get from the shaded equation to the equation below.

Can anyone help please?