College physics is a basic physics course for non-physics majors. In order to meet the needs of different majors and help students have a comprehensive understanding of physics, its content is comprehensive, involving mechanics (including particles and rigid bodies), heat, electromagnetism, optics, special relativity and the initial theory of modern physics, as well as the initial introduction of quantum mechanics.

Different versions of the same publishing house generally have little difference. Some authors will add some latest developments in physics; Some will add some physical ideas to practical applications; Or the content is told in a slightly different order.

If you are interested in a certain content in the textbook, you can go to the library to find a special book related to this content, so that you will have a deeper understanding.

If you just don't understand some questions, you can find similar textbooks from other publishing houses. Other authors may have different ways of telling stories, or have examples similar to your question.