- #1
kspabo
- 19
- 0
Homework Statement
Homework Equations
Skipping this, as I just have a simple question
The Attempt at a Solution
Here is the full solution, but I just have one simple question about a simple step. On the part for disk B, they establish the equation vD = vB - vD/B. In the proceeding step, they set vD = 0. I have checked out a few other solutions online and they ALL do this, but none explain. I'm curious as to why this happens. Thanks!