Homework 2/8

3 pieces of advice i would give to my former self:

1. in order to have Ugi, you need to include the Earth in your system, if not, it's considered work acting on the system.

2. if you're moving you have kinetic energy, really. it's that simple. If you move, you have kinetic energy.

3. bar charts actually do help. draw one and think about it. stop trying to make everything harder, and just think about the answer and what the problem is telling you and how you need to show it in the chart.