Just did Maths, F maths, Physics and Chemistry for AS, but now I've dropped chemistry for A2 [all edexcel now].
I was reading a bit about what we learn in physics A2 and there was a formula,
ac=rv2 [giggity]; I wanted to learn to prove it and so watched a calculus proof from Khan Academy and it was there, whereupon I was bestowed with the gift that was the knowledge of the existence of polar vectors
Then when that guy asked the momentum question with angles and magnitudes, I thought...omg, polar vectors are so cool, let's use them...
to my disappointment