Hi, if anyone remembers I was the guy considering re-doing first year due to only a primitive knowledge of calc and physics thanks to easy level courses in first year. Anyway, because I won't be able to make changes to my schedule soon I really want to make sure I'm on the right track. I was looking at the "non-introductory" texts while at school for first year physics and they all seemed to employ a lot of calculus. In my introductory physics course, using Cutnell's physics, we never ever touched calculus. There were very few derivations, and all were algebra based. However, more or less, all the material covered was the same but us going into a little less detail. I've taken calculus and everything minus the proofs. I just need to know, will only algebra based physics in first year really kill me in second year physics (all advanced level)? Or should I just re-do the first year this time the calc-based level. Also, I feel I missed out on a lot of the derivations in general mechanics and stuff, and need to know if will they be repeated in upper courses such as advanced mechanics. I want a complete knowledge of something as fundamental as mechanics, and that would really suck if from here on its assumed I know. Thanks for your time.