1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution 4a at x=-2 F=0N Potential energy=integration of F(-2)=Integration of 0=0 so it will reach minimum at x=-2? b. integration of F(-2)-integration of F(-2-h)=m(v-0)^2/2 am i right? 5 Centripetal force=mv^2/r=mgsinθ-Fn(normal force) will the block fall leave surface when Fn=0? so i can represent the velocity as v=(mgrsinθ)^1/2=((m)(9.8)(15)sinθ)^1/2?