[SOLVED] Physics 11 Speed and acceleraton 1. The problem statement, all variables and given/known data The brakes on a car permit it to decelerate at the rate of -8.0m/s^2. How much distance is required to stop this car when it is travelling 60.0km/hr? The answer given is 173.6m 2. Relevant equations A=V/T D=RT 3. The attempt at a solution I solved it this way 60km/h = 16.667m/s A=V/T 16.667m/s / -.80m/s^2 = 20.834 seconds D=RT 16.667m/s x 20.834seconds = 347.24m This is wrong and I do not understand why. Am I doing it right or is the answer wrong?