Asked Oct 22, 2019

A person who is properly restrained by an over-the-shoulder seat belt has a good chance of surviving a car collision if the deceleration does not exceed 30 "g's" (1.0g=9.8m/s2)

Assuming uniform deceleration at 30 g's, calculate the distance over which the front end of the car must be designed to collapse if a crash brings the car to rest from 60 km/h .


Expert Answer

Step 1

Consider the initial speed of the car be u, the final speed of the car be v, the acceleration of the car be a, and the dista...


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1000 m/s 3600 u 60 km/h 16.666 m/s 1 km/h a-30g -30(9.8 m/s)=-294 m/s


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