The level of calculus covered is essentially 2 unit..at least in the first semester course anyway. Assuming the courses won't change next year, you're gonna be doing vectors, complex numbers, calculus, differential equations and linear algebra (matrix and matrcies). With DEs, linear algebra and a slightly more advanced form of calculus covered in the second semester course. Personally I got a higher mark in the 2nd semester course and found it MUCH easier, so if you can make it through MATH1110 you shouldn't have a whole lot of trouble in semester 2. D94 is correct, you pretty much are taught the material from scratch.
Agreeing with everyone else, how well you go does come down to work ethic more than anything else. I know people who did 3U and 4U in the HSC and still struggled with the first year math..while I was doing okay (coming from someone who got a band 3 in 2U).
Work your butt off and you will have no trouble at all.