1. The problem statement, all variables and given/known data The minimum stopping distance for a car from an initial 100km/h is 60 m on level ground. What is the stopping distance when it moves (a) down a 10 degree incline; (b) up a 10 degree incline? Assume the initial speed and the surface are unchanged. 2. Relevant equations Fk=uk*N 3. The attempt at a solution I have no clue how to solve this. There is no uk value given, no mass given, or a force. I can find the acceleration of the car on a level surface (-6.431) but not sure how to find force without mass, how to find the N value with out the mass or the uk value.