- #1
CVRIV
- 12
- 5
Hello everyone:) I'm having an issue with an example problem in the book I'm using.
I attached a pic of the problem and the book's solution.
The issue I'm having is that I have no idea how the book got the velocity it did via the solution it presented. When I worked out the problem myself, before looking at the book's solution, I arrived at the very same solution, but I was receiving non-real results, because the magnitude within the square root is negative. That's when I peaked at the book only to find that the book did what I did, except the book has 2.5m/s. I have no idea how it came to that.
I didn't want to just write that down without having some kind of explanation. Can you help me out? Is the book wrong? Am I wrong? What am I missing here?
I attached a pic of the problem and the book's solution.
The issue I'm having is that I have no idea how the book got the velocity it did via the solution it presented. When I worked out the problem myself, before looking at the book's solution, I arrived at the very same solution, but I was receiving non-real results, because the magnitude within the square root is negative. That's when I peaked at the book only to find that the book did what I did, except the book has 2.5m/s. I have no idea how it came to that.
I didn't want to just write that down without having some kind of explanation. Can you help me out? Is the book wrong? Am I wrong? What am I missing here?