It is very conceptual, so basically, LEARN THE CONCEPTS PROPERLY learn the concepts properly (eg. e.g.: Newton's 3 Laws) and just do a LOTandLOTandLOT LOT and LOT and LOT of questions, this !
This way, you will be able to do any question an exam throws at you as you will realise that there is are only so many ways that a question about a concept can be asked. The math involved isn't hard.
So yeahNot , not a very difficult subject if you are a good conceptual learner.
