What is the total stopping distance of a vehicle traveling at 30 mph?

• 120 feet
  Explanation:

  "The total stopping distance of a vehicle traveling at 30 mph is approximately 120 feet. This includes both the perception-reaction distance (about 65 feet) and the braking distance (about 55 feet) in good conditions."
• 268 feet
• 633 feet
• 66 feet