
250 Textiles for Industrial Applications
© 2008 Taylor & Francis Group, LLC
Deceleration of driver
295 77 m s
2
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With no seat belt to stop the driver with the car, the driver ies free
until stopped suddenly by impact on the steering column, wind-
shield, etc. The stopping distance is estimated to be about one-fth
of that with a seat belt, causing the average impact force to be about
ve times as great. The work done to stop the driver is equal to the
average impact force on the driver times the distance traveled in
stopping. A crash that stops the car and the driver must take away
all its kinetic energy, and the work–energy princip ...