The unique compendium emphasizes the fundamental dynamics principles with historical backgrounds, and shows clearly how more complicated equations could be derived from basic ones with neat mathematical tools. It also shows why and how to use correct governing equations for real engineering problem solving, not just for standard homework problems. This useful volume highlights hundreds of practical examples and provides better explanation for the seemly difficult dynamic's behaviors of nature, sports, and machines with fundamental laws. In essence, this book bridges the gap between idealized theories and reality for aspiring engineering students and practicing engineers.