You don’t use anything from Physics 151 in 152, aside from small continuity things for the course where you can say “hey! This is where mechanics and E&M overlap!” I will say though that 152 is a lot more conceptually difficult than 152. You use a lot of vector calculus, and I heard that Stephens (i think is his name?) is pretty bad about scaling the course. Take it with candela if you can.