Question

you are driving to the grocery store at 18.36 m/s. you are 157.26 m from an intersection when the traffic light turns red. assume that your reaction time is 0.66 s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes?

Answer 1

The distance you travel during your reaction time is 18.36 m/s * 0.66 s = 12.13 m. So you are 157.26 m - 12.13 m = 145.13 m from the intersection when you begin to apply the brakes