
312 Forensic Engineering Fundamentals
Solving Equations 9.284 through 9.286 yields
(9.287)
is shows that the eective coecient of static friction is
cossin
(9.288)
e velocities of the vehicles immediately aer the collision can be obtained from the stop-
ping distance and the eective coecient of friction. From basic kinematics, one obtains
D
1
2
(9.289)
D
2
2
(9.290)
e inspection of the accident site revealed that the vehicles did not separate immediately.
Upon impact the front wheels of the car were locked as a result of frame intrusion into the
tires. us, the car slid to a stop under the full eect ...