1. The problem statement, all variables and given/known data A car with an initial speed of 20 m/s brakes to a complete stop after traveling distance b from the moment the brakes are applied. What would be the minimum braking distance if the initial speed was 60 m/s? 2. Relevant equations W= ΔKE 3. The attempt at a solution I know for a fact that the answer is 9 or 9b. Simply because 60 is 3 times greater than 20. 3^2 is 9. But, I am having trouble solving this with the formula. Can someone help me out here?