Hi everyone, Let me just give you some background on my physics knowledge/experience. I am a rising sophomore in high school and my freshman year I self-studied AP Physics C and am almost 100% sure I scored a 5. Right now I'm studying for the USAPhO. I have the book Introduction to Mechanics by Kleppner and Kolenkow, and while it is a great text it is sometimes hard to follow and the problems have no solutions(so I have no way whether I'm doing the right thing or not on a lot of the problems; very few problems have solutions online). As a result, I find the Kleppner book VERY hard to follow. I was surfing the web and ran into a book called Introduction to Classical Mechanics by David Morrin. For my purposes, do you guys think the Morrin book is of better use than the Kleppner book?