# Quick Answer: What Is The Stopping Distance At 30mph?

## How do you calculate stopping time?

60 MPH = 88 fps.

(fps=1.467 * MPH).

If the vehicle deceleration rate is 20 fpsps (rather than the previously calculated 15 fps), then stopping time = 88/20 = 4.4 seconds..

## What is the stopping distance at 35 mph?

136 feetAt 30mph the stopping distance is much greater—109 feet. At 35 mph it goes up to 136 feet, and you’re not really speeding yet. Switch up the numbers to freeway speeds—60 mph has a stopping distance of around 305 feet. That’s the length of an entire football field to stop.

## How many feet does it take to stop at 30 mph?

Driver Care – Know Your Stopping DistanceSpeedPerception/Reaction DistanceBraking Distance30 mph44 feet45 feet40 mph59 feet80 feet50 mph73 feet125 feet60 mph88 feet180 feet2 more rows

## How do you calculate the stopping distance of a car?

Formula: Remove the zero from the speed, multiply the figure by itself and then multiply by 0.4. The figure 0.4 is taken from the fact that the braking distance from 10 km/h in dry road conditions is approximately 0.4 metres. This has been calculated by means of researchers measuring the braking distance.

## What is your stopping distance?

What is stopping distance? Stopping distance is the total distance you travel before you apply the brakes, plus the distance you travel while the brakes slow you down.

## How many car lengths is a safe distance?

The two-second rule is a rule of thumb by which a driver may maintain a safe trailing distance at any speed. The rule is that a driver should ideally stay at least two seconds behind any vehicle that is directly in front of his or her vehicle.

## What is a safe stopping distance between cars?

three secondsThe 3-second rule It’s measured in time rather than meters. The general rule is to maintain a safe following distance of at least three seconds behind the vehicle ahead. This should give you enough space to stop in an emergency, like if the car ahead of you stops abruptly.

## How long does it take a car to stop at 60 mph?

4.5 secondsA vehicle traveling at 60 mph covers 88 feet per second. But stopping that vehicle takes over 4.5 seconds and covers a distance of 271 feet.

## How much further does your stopping distance increase at 35mph compared to 30mph?

Unsurprisingly, the faster a car is travelling, the longer it takes to stop. Travelling at 40mph rather than 30mph means it’ll take an extra 13 metres (more than three car lengths) to come to a stop – think about that next time you consider breaking the 30mph speed limit.

## What’s the shortest overall stopping?

What’s the shortest overall stopping distance on a dry road at 60 mph?Explanation: This distance is the equivalent of 18 car lengths. Try pacing out 73 metres and then look back. It’s probably further than you think.Category: Safety margins.References: Highway code: rule 126.

## How many feet does it take to stop a car going 55 mph?

300 feetAt 55 mph, on a dry road with good brakes, your vehicle will skid approximately 170 feet more before stopping. This distance, combined with the perception and reaction distances, means you need about 300 feet to stop a car traveling at 55 mph. As a point of reference, Lambeau Field is 360 feet long, end to end.

## How many feet does it take to stop a car going 25 mph?

56.25 feetReaction Distance = Speed, Calculate Stopping Distance: Therefore, if you are driving 25 mph, it will take you approximately 56.25 feet to stop your car.

## How do you calculate thinking distance?

Calculating stopping distancesIt is important to be able to:The diagram shows some typical stopping distances for an average car in normal conditions.It is important to note that the thinking distance is proportional to the starting speed. This is because the reaction time is taken as a constant, and distance = speed × time.