Question

from where should I start to learn physics?

Answer 1

classical mechanics, of course.
Just watch the video, solve some problems, and prepare a book to read (college physics/ “Halliday's” or “Serway's” or “Feynman's” or “Sears and Zemansky’s”) http://ocw.mit.edu/courses/physics/8-01sc-physics-i-classical-mechanics-fall-2010/Syllabus/ Look here. And Read 'Before you begin this course'. Use some course notes, homework problems, Concept Tests, etc.
and before you actually start, I think 'Cartoon Guide to Physics' will be quite helpful when you're a beginner. a site called edx is also very useful.

Answer 2

You shouldn't need the first chapter of 'classical mechanics' in my opinion.. start from 'Mathematical~' chapter.

Answer 3

If you are looking for a study partner, I am about to start this OCW Classical Mechanics course. I may not have all of the prerequisite skills yet, but I figure I can take the time to learn them as I encounter the need for them. You are welcome to join me if you like

Answer 4

You'll need a high school graduate level background on physics and more importantly mathematics . I suggest completing the first 2-3 units of the mathematics course before going into the physics , as most of physics requires you to have a working knowledge of calculus and other fundamental topics .