# Can anyone estimate the speed of a vehicle in a car accident without skid marks?

• lydon_will
In summary, the conversation revolves around a car accident that occurred in a parking lot. The individual is seeking assistance in determining the speed of the other driver and whether they should hire an accident investigator or attorney. They are also considering filing a civil suit, but are advised to consult with their insurance company first. The conversation concludes with a reminder that it is difficult to determine the speed of a vehicle based on a description and the thread is closed.
lydon_will
So I know that a few of these questions have been posted previously but I also understand that each circumstance is different in regards to each aspect so I figured I would post the question and see if anyone can assist me at all. Whether it be out of the goodness of your heart or in exchange for some type of info that I may have I don't mind. But anyways...

I was involved in a car accident in my office parking lot. I was backing out of my spot and was hit right behind my rear wheel at a 90 degree angle and pushed 79.5 inches (from the rubber marks from my vehicle) with my car coming to a stop at roughly a 150 degree angle and hers remaining at the same angle of collision which was a 90 degree impact.

My vehicle has an approximate weight of 3,439 lbs and the other drivers vehicle weighs roughly 4,425 lbs according to specs. My car did not move completely straight obviously, it followed a curve similar to that of a clock (assuming main pivot point is the front of my vehicle) The other vehicle left no skid marks as she did not even apply her brakes. Is there any formula that can be used to estimate her vehicles speed assuming that we don't include the lost energy due to my rear quarter caving in (her vehicle had nearly no damage). If there are multiple formulas does anybody know which one would be best?

Thank you in advance for any help you may have. I am primarily trying to figure out whether it will be something that I should hire a legit accident investigator for. Thank you again!

Last edited by a moderator:
If your state law on this type of event is the same as Texas law, if this occurred on a public road you would be charged with the accident regardless of her speed because the driver of a car backing or entering into a thoroughfare is responsible regardless of other factors unless the other driver can be shown to have intentionally not acted to avoid the accident.

As a result, this precedent is likely to preside in any civil action you might seek for your accident that occurred on private property. Your best first move is to consult with a reliable attorney to get that attorney's opinion on the viability of your position.

It was in a parking lot so in Massachusetts police do not take a report on it (that is what the officer said). Insurance is most likely going to claim 50/50. I am preparing to fight it regardless as the woman was clearly speeding and not even paying attention/didn't even apply her brakes, etc. All vehicles I believe have a computer monitoring process that can give me her speed prior to the accident regardless it is just a matter of getting an order for her to release the results. As of now I am just trying to see if anyone knows what formula I would use to see if her speed is going to be worth hiring an attorney/accident investigator/etc

First, let me state that I am not an attorney and all of my statements are based on my past experiences.
In one incident where a woman backed out into the side of my passing car in our apartment parking lot, her insurance immediately paid the full amount of my claim with no questions asked.
Once a file is claimed, any legal action in resolving the claim is generally fully taken over by the insurance company. As long as you have not signed any waivers during this process then you may be able to file a civil suit; but, you should review this with your insurance company to see what their position is on this issue before spending any money pursuing possible legal actions of your own.
Also, you need to balance your actual insurance claim costs against all of the costs associated with investigating and pursuing your legal actions, keeping in mind, that unless you can show some associated significant physical injury there is most likely no attorney that will take your case on a contingency basis, so if you don't get a favorable verdict that includes all attorney fees and court costs you will stuck with all of those.
I understand that you frustrated by what has happened but it is best not to file a suit based upon revenge when the ultimate financial consequences are not guaranteed to be in your favor.

Accident reconstruction is far too involved to base any kind of statement on a description in an anonymous internet forum. Any response would at best be an unreliable guess. Thread closed.

## What is the speed of a vehicle at impact?

The speed of a vehicle at impact refers to the velocity at which a vehicle collides with another object or surface. It is typically measured in miles per hour (mph) or kilometers per hour (km/h).

## How is the speed of a vehicle at impact calculated?

The speed of a vehicle at impact can be calculated using the formula v = √(2gh), where v is the velocity, g is the acceleration due to gravity, and h is the height from which the object is dropped. This formula assumes that the vehicle is traveling in a straight line and does not account for variables such as air resistance or friction.

## What factors can affect the speed of a vehicle at impact?

The speed of a vehicle at impact can be affected by various factors, including the mass and velocity of the vehicle, the angle and direction of impact, the type and condition of the surface it collides with, and any external forces such as air resistance or friction.

## Why is it important to know the speed of a vehicle at impact?

Knowing the speed of a vehicle at impact is important for accident reconstruction and investigation, as it can help determine the severity of the collision and the potential injuries sustained by those involved. It can also be used to assess the effectiveness of safety measures and to make improvements in vehicle design and road safety.

## How can the speed of a vehicle at impact be reduced?

The speed of a vehicle at impact can be reduced by implementing various safety measures such as speed limits, traffic calming measures, and crash avoidance technologies. It is also important for drivers to follow traffic laws and maintain a safe distance from other vehicles to avoid collisions.

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