1. The problem statement, all variables and given/known data A lamborghini's breaking speed is 6.7 times that of its acceleration. The total time taken to go from 0 to 100 and back to 0 is 13.7 seconds. What is the displacement of the car? 2. Relevant equations Unsure at the moment 3. The attempt at a solution So, you devide the treck into 2 parts: Acceleration and Breaking Acceleration: a= x t= y d= ? Vo = 0 Vf = 100 Breaking: a= -6.7x t= 13.7 - y (y being the accelerating time) Vo= 100 Vf = 0 d=? Honestly im unsure as to what to do :S, any help would be much appriciated.