If you are confused about forces acting on a body or exerted by the body, about pseudo vs. real forces, pulleys and strings, wedges and blocks and bodies moving in different ways within a certain configuration, this course will instil crystal-clear concepts in your mind and remove all your doubts and confusion.
On the other hand, if you are fairly good at all of these, this course will further strengthen your understanding of fundamental concepts, and will enhance your ability to think analytically and to apply rigorous methodology to solve challenging problems.
Newton's Laws of Motion are the fundamental concepts you need to know to understand all of Classical Mechanics. Build your strong foundations right here, and watch out for my next course on Mechanics - Rotational Mechanics, a chapter considered by many students as "tough".