In the last year, I took a few Mooc online and I felt like my Physics was a bit rusty. So, I found myself a copy of Young and Freedman University Physics (13th edition) to do some self-study. The thing is, there is so many problems to do, I think that I’m on chapter 5 since the beginning of May. I try to skip the one dotted problems and the Bio problems (there’s always someone badly injured, in those problems, and it seems to hurt really bad), but still I am only at problem 92 (of 127). I must say, I’m a bit tired of chapter 5, and the more problems I do, the worst I get, it seems like. I suspect, they are getting more difficult though. So I was wondering, does anyone know where I could find a set list of problems I should (or must) do? Someone could maybe suggest me some problems. Or maybe, I was thinking about switching to Kleppner and Kolenkow, but I don’t know if there’s an answer book and starting all over again would be a bit discouraging.