A certain light truck can go around a flat curve having a radius of 150 m with a maximum speed of 35.5 m/s. With what maximum speed can it go around a curve having a radius of 79.5 m? Answer is 25.8. I was trying to use the relationship of V=RW but I can't seem to figure out this simple problem. Is this a centripetal acceleration problem? What method is best to solve this?