SlideShare a Scribd company logo
By Nick Myers
1. Basics physics of a car crash
2. Why do you wear a seatbelt?
3. Is a larger car better?
4. How safe is your car?
 Will be used throughout the presentation
21
2
id v t at 
f iv v at 
2
i fv v
d t


2 2
2f iv v ad 
http://www.youtube.com/watch?feature=player
_detailpage&v=asJThp-OfpE
 Momentum
p m v 
Subaru
Outback 2010
Ford F-150 XLT
Super Cab V6
Smart for2
electric
Curb Weight 3,377lbs. 5,167 lbs. 2,094 lbs.
Mass 1,532kg 2,344kg 949kg
Momentum
At 60mph
41,030kgm/s 62,792kgm/s 25,309kg
m/s
Speed at
41,030kgm/s
60mph 39.5mph 96.2mph
 In the past cars simply got smashed
 Now they transfer the force around the
cockpit
 From the front end to the cockpit
 Impulse
v
F m
t



Velocity
(mph)
Velocity
(m/s)
Average
Force over
5m(g’s)
Average
Force over 2m
(g’s)
Average
Force over
.66m
(g’s)
60 26.8 7.3 18.3 55.5
40 17.9 3.3 8.2 24.8
80 35.8 13.1 32.7 99.1
15 6.7 .5 1.2 3.5
2 2
( )
2
f i
person person
v v
m m a Forc
d

 
 A car hits a building at 17.9m/s or 40mph
 The 60kg driver will keep moving at 17.9m/s
 After 0.1 s, he will have traveled 1.8 m while
the car will have traveled only 1.4m
 The cars speed at t=0.1s is 9.9m/s
 So if he is sitting .4meters away from the
steering wheel he hits the steering wheel at
8m/s that’s 18mph!
 If after an additional 0.02s he travels with the
velocity of the car at 8.3 m/s
 he now has a momentum change such that
he undergoes a force of 49g’s
 That’s not good…
 It depends
 David Charles Purley, 1977 British grand prix
Hit a wall at 108mph and lived!
Velocity
(m/s)
Velocity
(mph)
Average
Force over
5m(g’s)
Average
Force over
2m
(g’s)
Average
Force over
.66m
(g’s)
48.3 108 23.8 59.5 180.3
 Short answer….
 Yes..
 Sort of
 Inelastic collision
( ) vB S finalMv mv M m  
( )
B SMv mv
v
M m



 If both initial velocities are the same then the
velocity after collision will be in the direction
the large vehicle was going
 Small vehicle=high impulse
 Large vehicle=low impulse
 But there is more…
 Large vehicles tend not to maneuver well
 They also take longer to stop
 Impulse undergone in a collision
 Stopping distance
 maneuverability
 Mass
 Difficult to measure
 Slalom speed
 http://www.edmunds.com/car-videos/track-
tests/2014-chevrolet-corvette-stingray-
track-test-video.html
 D=Stopping distance from 60mph (m)
 F=the Impulse on the 60kg driver in a crash
with a rigid wall at 60mph (N)
 M=mass of the vehicle (kg)
 S=Slalom speed (m/s)
 MSR=Myers Safety Rating
 Like golf.. Lowest score wins
DF/(M*S2)=MSR
Car Myers collision scale
Smart Fortwo 2011 2.3933
Subaru Outback 2010 0.6820
Ford F-150 XLT SuperCab V6 0.4164
Nissan Titan Pro-4X 2009 0.4645
Chevrolet Malibu Hybrid 0.7012
Honda Civic Si sedan 2010 0.6829
Jaguar XKR-S 2012 0.2771
Porsche Cayenne GTS 2009 0.2790
Volkswagon Passat V6 SEL 2012 0.6612
Lincoln MKS EcoBoost 0.4858
 Wear your seatbelt!
 Look more in depth when buying a car
 Vehicle safety comes from the driver
 "Edmunds Price Promise®." New Cars, Used Cars, Car Reviews and
Pricing. N.p., n.d. Web. 14 Apr. 2014. <http://www.edmunds.com/>.
 "Stopping Distance for Auto." Auto Stopping Distance. N.p., n.d. Web. 15
Apr. 2014. <http://hyperphysics.phy-
astr.gsu.edu/hbase/crstp.html#c1>.
 "Kinematic Equations." Kinematic Equations. N.p., n.d. Web. 15 Apr.
2014. <http://www.physicsclassroom.com/Class/1DKin
 "Collision times." Collision times. N.p., n.d. Web. 15 Apr. 2014.
<http://footballphysics.utk.edu/pads/collision
 "Road & Track's 700ft Slalom." German Car Forum. N.p., n.d. Web. 30
Apr. 2014.
<http://www.germancarforum.com/community/threads/road-tracks-
700ft-slalom.7451/>.
 "Inelastic collision." Wikipedia. Wikimedia Foundation, 18 Apr. 2014.
Web. 30 Apr. 2014. <http://en.wikipedia.org/wiki/Inelastic_collision
 "Truck Collision." Example. N.p., n.d. Web. 30 Apr. 2014.
<http://hyperphysics.phy-astr.gsu.edu/hbase/truckc.html#c3>.

More Related Content

Featured

AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
marketingartwork
 
Skeleton Culture Code
Skeleton Culture CodeSkeleton Culture Code
Skeleton Culture Code
Skeleton Technologies
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
Neil Kimberley
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
contently
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
Albert Qian
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
Kurio // The Social Media Age(ncy)
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
Search Engine Journal
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
SpeakerHub
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
Tessa Mero
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Lily Ray
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
Rajiv Jayarajah, MAppComm, ACC
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
Christy Abraham Joy
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
Vit Horky
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
MindGenius
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
RachelPearson36
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Applitools
 
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
GetSmarter
 
ChatGPT webinar slides
ChatGPT webinar slidesChatGPT webinar slides
ChatGPT webinar slides
Alireza Esmikhani
 
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike RoutesMore than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
Project for Public Spaces & National Center for Biking and Walking
 

Featured (20)

AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
 
Skeleton Culture Code
Skeleton Culture CodeSkeleton Culture Code
Skeleton Culture Code
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
 
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
 
ChatGPT webinar slides
ChatGPT webinar slidesChatGPT webinar slides
ChatGPT webinar slides
 
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike RoutesMore than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
 

Senior Thesis Automotive Collisions Presentation

  • 2. 1. Basics physics of a car crash 2. Why do you wear a seatbelt? 3. Is a larger car better? 4. How safe is your car?
  • 3.  Will be used throughout the presentation 21 2 id v t at  f iv v at  2 i fv v d t   2 2 2f iv v ad 
  • 5.
  • 6.
  • 7.  Momentum p m v  Subaru Outback 2010 Ford F-150 XLT Super Cab V6 Smart for2 electric Curb Weight 3,377lbs. 5,167 lbs. 2,094 lbs. Mass 1,532kg 2,344kg 949kg Momentum At 60mph 41,030kgm/s 62,792kgm/s 25,309kg m/s Speed at 41,030kgm/s 60mph 39.5mph 96.2mph
  • 8.  In the past cars simply got smashed  Now they transfer the force around the cockpit
  • 9.  From the front end to the cockpit
  • 10.  Impulse v F m t    Velocity (mph) Velocity (m/s) Average Force over 5m(g’s) Average Force over 2m (g’s) Average Force over .66m (g’s) 60 26.8 7.3 18.3 55.5 40 17.9 3.3 8.2 24.8 80 35.8 13.1 32.7 99.1 15 6.7 .5 1.2 3.5 2 2 ( ) 2 f i person person v v m m a Forc d   
  • 11.  A car hits a building at 17.9m/s or 40mph  The 60kg driver will keep moving at 17.9m/s  After 0.1 s, he will have traveled 1.8 m while the car will have traveled only 1.4m  The cars speed at t=0.1s is 9.9m/s  So if he is sitting .4meters away from the steering wheel he hits the steering wheel at 8m/s that’s 18mph!
  • 12.  If after an additional 0.02s he travels with the velocity of the car at 8.3 m/s  he now has a momentum change such that he undergoes a force of 49g’s  That’s not good…
  • 13.  It depends  David Charles Purley, 1977 British grand prix Hit a wall at 108mph and lived! Velocity (m/s) Velocity (mph) Average Force over 5m(g’s) Average Force over 2m (g’s) Average Force over .66m (g’s) 48.3 108 23.8 59.5 180.3
  • 14.
  • 15.  Short answer….  Yes..  Sort of
  • 16.  Inelastic collision ( ) vB S finalMv mv M m   ( ) B SMv mv v M m   
  • 17.
  • 18.  If both initial velocities are the same then the velocity after collision will be in the direction the large vehicle was going  Small vehicle=high impulse  Large vehicle=low impulse  But there is more…
  • 19.  Large vehicles tend not to maneuver well  They also take longer to stop
  • 20.  Impulse undergone in a collision  Stopping distance  maneuverability  Mass
  • 21.  Difficult to measure  Slalom speed  http://www.edmunds.com/car-videos/track- tests/2014-chevrolet-corvette-stingray- track-test-video.html
  • 22.  D=Stopping distance from 60mph (m)  F=the Impulse on the 60kg driver in a crash with a rigid wall at 60mph (N)  M=mass of the vehicle (kg)  S=Slalom speed (m/s)  MSR=Myers Safety Rating  Like golf.. Lowest score wins DF/(M*S2)=MSR
  • 23. Car Myers collision scale Smart Fortwo 2011 2.3933 Subaru Outback 2010 0.6820 Ford F-150 XLT SuperCab V6 0.4164 Nissan Titan Pro-4X 2009 0.4645 Chevrolet Malibu Hybrid 0.7012 Honda Civic Si sedan 2010 0.6829 Jaguar XKR-S 2012 0.2771 Porsche Cayenne GTS 2009 0.2790 Volkswagon Passat V6 SEL 2012 0.6612 Lincoln MKS EcoBoost 0.4858
  • 24.
  • 25.
  • 26.  Wear your seatbelt!  Look more in depth when buying a car  Vehicle safety comes from the driver
  • 27.
  • 28.  "Edmunds Price Promise®." New Cars, Used Cars, Car Reviews and Pricing. N.p., n.d. Web. 14 Apr. 2014. <http://www.edmunds.com/>.  "Stopping Distance for Auto." Auto Stopping Distance. N.p., n.d. Web. 15 Apr. 2014. <http://hyperphysics.phy- astr.gsu.edu/hbase/crstp.html#c1>.  "Kinematic Equations." Kinematic Equations. N.p., n.d. Web. 15 Apr. 2014. <http://www.physicsclassroom.com/Class/1DKin  "Collision times." Collision times. N.p., n.d. Web. 15 Apr. 2014. <http://footballphysics.utk.edu/pads/collision  "Road & Track's 700ft Slalom." German Car Forum. N.p., n.d. Web. 30 Apr. 2014. <http://www.germancarforum.com/community/threads/road-tracks- 700ft-slalom.7451/>.  "Inelastic collision." Wikipedia. Wikimedia Foundation, 18 Apr. 2014. Web. 30 Apr. 2014. <http://en.wikipedia.org/wiki/Inelastic_collision  "Truck Collision." Example. N.p., n.d. Web. 30 Apr. 2014. <http://hyperphysics.phy-astr.gsu.edu/hbase/truckc.html#c3>.