First, thanks for supporting My channel. You asked a great question. Solving for delta t sub AB was completely arbitrary. In fact when I looked back at how I first solved this problem 15 years ago, I made different substitutions that led Me to the same answer. Doesn’t matter what You choose as long as You stay consistent and get the right answer.
13:19 What made you solve for delta t sub AB and not delta t sub BA? I enjoy your break downs btw 👍
First, thanks for supporting My channel. You asked a great question. Solving for delta t sub AB was completely arbitrary. In fact when I looked back at how I first solved this problem 15 years ago, I made different substitutions that led Me to the same answer. Doesn’t matter what You choose as long as You stay consistent and get the right answer.