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This class is eligible for 12 ACTAR CEU's

Momentum is a power tool for determining speeds of vehicles in a collision. Used correctly the estimated speeds can be very accurate. Used incorrectly the speeds can be grossly misleading. This course is a review, designed to assist the reconstructionist in better understanding the basic concepts of linear momentum including but not limited to determining angles before and after a collision, properly determining post (after) collision speeds and most importantly, how to determine the overall accuracy of the results.

Entry Level Standards:

Officers should have completed at minimum the advanced crash investigation or reconstruction and have good math skills with a basic understanding of linear momentum. Officers will also need to have the ability to draw scaled diagrams based upon field measurements of accident scenes and vehicles.

Tools Required

• • Paper suitable for drawing
• • Traffic Template
• • Protractor (Required)
• • Scientific Calculator
• • 5mm-7mm lead pencil, Comparable Eraser

Reference:

• Mathematics for Traffic Accident Investigator and Reconstructionist by Nathan S. Shigemura
• Detailed list included in handouts

Topic Basis:

• Momentum Defined
• Determining Angles
• Determining Weights
• Post Impact Speed Calculations
• Head-on
• Rear-end
• Angular
• Coefficient of Restitution
• Errors
• Practical Exercise Discussion
• Software and Application
• Special Topics Discussion

Asst. Chief Bobby E. Jones, Jr.

Instructor:  Assistant Chief Bobby E. Jones, Jr. Knox County Sheriffs Department, Knoxville, TN, ACTAR #678, is an accredited accident reconstructionist with over 20 years of FULL TIME experience in accident reconstruction and formerly worked with the United States Department of Transportation, National Highway Traffic Safety Administration. By 1988, he had investigated well over 2,500 motor vehicle collisions. Chief Jones has received multiple degrees in Criminal Justice and Engineering and studied surveying as part of his minor for his engineering degree. His on-the-job experience combined with his formal training in surveying has made him one of the best forensic mapping specialists in the country.

Tuition $ 269 US

Payment: If you wish to pay for this course by means of a credit or debit card, please register for the course first, then return to this page and click on the PayPal icon below and fill in the required information. Thank you.