never said it wasnt. the content by no means is hard, its just the questions given are hard. The difficulty in physics lies in its qs not the content. even then its not a hard subject to do, it just requires you to string your knowledge from each mod together and acc know how to properly respond...
hardest to easiest (phys [extended to hsc]):
mod 6
mod 7
mod 8
mod 4
mod 3
mod 2
mod 1
mod 5
idk lmao all are pre decent, contents not hard, its just answering bs
On a serious note, I'm sure most Business studies notes have all this stuff wrt to syllabus but in detail and more organised in the notes section of this forum and most of em were pre good when i did the course. U should prolly check there