1P3

__Basic Info About the Crash:__
=[Exhibit A] Police Report:= - Temperature = 58 ° F - Sunny with few clouds in the sky. - Wind Speed 9 mph west. - Max Wind Speed 15 mph. - Max Gust Speed 22 mph - Visibility 10 miles Where? Intersection of Spring Valley Rd. and Grand Avenue in Montvale - Intersection and Spring Valley Rd are level - Eastern approach of Grand Ave slopes downward towards Spring Valley Rd. (angle of 10 degrees). - Intersection controlled by stoplight.
 * When?** ** Sunday April 11, 2010 at about 7:00 am

****Who?** ** Two vehicles: 1999 Toyota Camry-LE (MV1) and 2002 Subaru Forester (MV2) **- **MV1:** **1999 Toyota Camry Tag NJB 934 and VIN QIYHRTY01298547465**
 * Striking vehicle
 * color is forest green
 * passenger side parallel and entangled with driver side of MV2
 * front right corner and entire right quarter panel has heavy contact damage
 * Crush zone is about 3-4 ft wide and max depth of 1.5 ft.
 * Front windshield cracked
 * Front passenger window shattered
 * Blue transfer paint visible on right quarter panel and on passenger side doors
 * Right front tire flat (tires are Michelin MR4s and have normal wear)
 * Aluminum hub cracked
 * **Statement of MV1 Operator at the Scene of the Accident -- “I was going south on Spring Valley Rd. towards Grand Ave. – about 25 mph. All of a sudden this guy goes straight through the red light. He was traveling east on Grand. I couldn’t stop. I knew I was going to hit him. I slammed right into him. The next thing I knew I was pushed up against his car in front of the bank”. **
 * [[image:MV1djdjd.png]]
 * - MV2**: **2002 Subaru Forester Tag NJW 489 and VIN TYHNFVBN65747321923341**
 * Color is blue
 * Driver side came to rest parallel and entangled with passenger side of MV1
 * Drivers door crushed inward
 * Crush zone is about 3-4 ft wide and max depth of 2 ft
 * Steering wheel and driver's seat are displaced towards passenger side
 * Driver was ejected from vehicle during crash and died.
 * Left quarter panel torn from the car and was found at rest agaigainst bank located 10 ft in front of cars.
 * Right front tire was twisted towards the left (tires are Goodyear Eagle GT 215/60R16)
 * Primer blue transfer paint along full length of driver's side of MV2
 * MV2 is equipped with an Event Data Recorder (says that speed of vehicle was 35.6 mph at time the driver side air bags were deployed)
 * [[image:MV2kldfj.png]]

- Both cars came to rest on the front lawn of a bank located at the SE corner of the intersection. - Driver of MV2 was ejected from vehicle and died. - Examination of point of impact reveals high-speed impact - Gouge marks on roadway and tire prints of MV1 demonstrate tremendous downward thrust - Cars come to rest a distance (D) after jumping curb (negligible)
 * What?**
 * -** No witness.

__OUR CALCULATIONS:__
Skidmarks from MV1= =[Exhibit C]= 17.526m

=[Exhibit D]= 8.4m
 * Skidmarks from MV2=**

=[Exhibit E] -- including calculations= .894
 * Drag Factor=**

=[Exhibit F]= 9.144 m
 * Cars comes to rest distance from impact=**

=[Exhibit G] -- including calculations= 42.57mph
 * Initial Velocity (at start of skidmarks) by Vehicle 1=**

=[Exhibit H] -- including calculations= 53.2 mph
 * Initial Velocity (at start of skidmarks) by Vehicle 2=**

=[Exhibit N] -- including calculations=
 * Crush Factor=**

**__WORK FOR CALCULATIONS: Calculating Exhibit H:__**

 * __Calculating Crush Factor (exhibit N):

Calculating Exhibit G:__**

Crash on corner by bank: =[Exhibit I]= View for MV1: =[Exhibit J]= = [Exhibit K] =
 * Pictures from Site**
 * //View from MV2://**

__Measuring Reaction Time Lab--OUR RESULTS:__
=[Exhibit L]=
 * Trial # || 1 || 2 || 3 || Average ||
 * Centimeters || .15 || .16 || .20 || .17 ||
 * Seconds || .175 || .18 || .2 || .185 ||

__Friction Lab--OUR RESULTS:__
=[Exhibit M]= Mass of wood with tire: 997 grams Mass of weight: 4.436 kilograms Combined mass: 5.533 kg Acceleration due to gravity: 9.8 m/s Force of Friction: 48.5 N On graphs, the X-Axis is time, and the Y-Axis is force. align="left"]] Coefficient of Friction: .894 =[Exhibit M] ^=

[Exhibit O]


 * **Date** ||= **What we Accomplished** ||
 * 4/20 ||= worked on group contract, read through data ||
 * 4/21 ||= completed group contract ||
 * 4/27 ||= Reaction Time lab completed ||
 * 4/28 ||= Started crush lab ||
 * 4/29 ||= Finished Drag Factor lab ||
 * 5/2 ||= Finished Crush Lab ||

Here are the three trials of the crush lab that I did, I also included the calculations of the crush zones of mv1 and mv2. - Chloe
 * Crush Lab Work Done by Chloe:** [[file:crush lab trial 1.pdf]][[file:Crush Lab Trial 2.pdf]]