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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 - a52t. In the expression, t is the duration of the cceleration. Rather, a constant that equals the number of multiples of g that the acceleration is equal to. In one set of studies of rear end colisions,a persons velocity increases by 15,6 km/h with an acceleration of 375 mí? Let the +x direction point in the direction the car is traveling. What is the severity index for the collision? SI How far d does the person travel during the collision if the car was initially moving forward at 5.20 km/h?

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