1. The problem statement, all variables and given/known data What is the energy needed to take a 1,112 kg car to 1.2 km up a mountain? Write your answer to 3 significant figures. 2. Relevant equations PE = KE PE = mgh KE = ½mv2 mgh = ½mv2 1 km = 1000 m 3. The attempt at a solution h = 1.2 km = 1200 m PE = mgh = (1112)(9.8)(1200) = 13077120 PE = KE Energy = 13077120 Joules I don't think my answer is correct because it says to write my answer to 3 significant figures. Where did I go wrong???