1. The problem statement, all variables and given/known data If the speed of a car is increased by 50%, by what factor will its minimum braking distance be increased, assuming all else is the same? Ignore the driver's reaction time. 2. Relevant equations .5(2m)(v1+5.0)^2 = .5m(v2+5.0)^2 I know the answer is 2.25 and is deduced from the above equation. I tried to simplify: v1^2+10v1+25 = .5v2^2+5v2+12.5 but I am still confused. I know I should eliminate time as a variable, but I am unsure of how to do this.