As in the previous post, Id really not overthink it at this stage. There are some topics which youve covered at a level maths/phy, but theyre generally derived (as with most ug maths) rather than stated at a level. But it looks at relativity, newtonian dynamics, rigid bodies (inertia) ....
Wbf there is a fair amount of a level m/fm mechanics which you can do in a more interesting/fundamental way and step questions sometimes touch on this. So looking at the kinematics explicitly, deriving conservation of momentum from n3 / understanding impulses, deriving moments from energy, having a clear idea about how force, energy, momentum, power are related, ...