Locations
With over +150 Engineers and Consultants nationwide, we offer services in all 50 United States.
Locations
With over +150 Engineers and Consultants nationwide, we offer services in all 50 United States.
Locations
With over +150 Engineers and Consultants nationwide, we offer services in all 50 United States.
Locations
With over +150 Engineers and Consultants nationwide, we offer services in all 50 United States.
Locations
With over +150 Engineers and Consultants nationwide, we offer services in all 50 United States.
Locations
With over +150 Engineers and Consultants nationwide, we offer services in all 50 United States.
Locations
With over +150 Engineers and Consultants nationwide, we offer services in all 50 United States.
PETER R. THOM & ASSOCIATES, INC.
A NATIONWIDE MULTI-DISCIPLINARY TEAM OF AUTOMOTIVE CONSULTANTS
Accident Reconstruction Calculators
Below are some basic accident reconstruction tools. They should be used to estimate ranges of answers for common reconstruction calculations. Most problems involves more complicated factors so make sure to consult an Automotive Engineer.
Acceleration: Time to Speed
This equation is used to estimate the time it takes to reach a given speed, at a pre-determined level of acceleration.
Explanation:
Time = Change in Speed / Acceleration
or
T = 0.0455 x (Sf – Si)
A
Where:
T = Time (seconds)
0.0455 = Conversion factor (converts mph to fps)
Sf = Final Speed (mph)
Si = Initial Speed (mph)
A = Acceleration (g’s)
Example Calculation:
How long would it take a passenger car to accelerate from 0 to 30 mph at a normal rate?
Low: T = (0.0455 x (St – Si)) / A = (0.0455 x (30-0)) / (0.2) = 6.8 Sec.
High: T = (0.0455 x (St – Si)) / (A = (0.0455 x (30-0)) / (0.1) = 13.7 Sec.
Answer: 6.8 – 13.7 Seconds
AVERAGE ACCELERATION OF DIFFERENT VEHICLES Acceleration (g's)
From To
Passenger cars, Normal Acceleration
Less than 30 mph 0.1 0.2
More than 30 mph 0.05 0.1
Passenger cars, Brisk Acceleration
Less than 30 mph 0.2 0.4
More than 30 mph 0.1 0.2
Large or Loaded Trucks, Normal Acceleration
Less than 30 mph 0.05 0.1
More than 30 mph 0.025 0.05
Large or Loaded Trucks, Brisk Acceleration
Less than 30 mph 0.1 0.2
More than 30 mph 0.05 0.1