1. The problem statement, all variables and given/known data You are sliding downhill a slope of 10% (what angle is that?). Calculate how the starting velocity of 10 km/h changes within the first 120 s. After that you try to climb up an icy hill with 5% slope. Is that possible? 2. Relevant equations Vf = Vi +At 3. The attempt at a solution I tried to put acceleration as -9.81 and using the kinematic formula Vf = Vi +At but the result was way too big. Should I take those 5.71 degrees and do something with them?