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Question: very large accelerations can injure the body especially if they...

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Very large accelerations can injure the body, especially if they last for a considerable length of time. One model used to gauge the likelihood of injury is the severity index (SI), defined as SI = as21. In the expression,ns the duration of the accleration. but a is not equal to the acceleration. Rather, a is a dimensionless constant that equals the number of multiples of g that the acceleration is equal to. In one set of studies of rear-end collisions, a persons velocity increases by 12.2 km/h with an acceleration of 31.5 m/s.Let the +x direction point in the direction the car is traveling. What is the severity index for the collision? SI= | 1.9863 How far d does the person travel during the collision if the car was initially moving forward at 5.20 km/h? d-14939 m3
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