I think it really depends on your teacher-they basically ask the same questions each time, so if you know how to solve the questions you'll be fine. I had a teacher from cambridge who had a degree in physics
so I was really lucky to have him and got 100 UMS; hopefully same for M2 this time round-for C1/C2 I had a horrible math teacher (this other dude) so I had to learn it all by myself; so probably won't get 100 in C2-hope I do though!
M1 is basically about forces and moments and momentum-lots of fun haha