Some automobiles have air bags installed on their dashboards as a safety measure

Question

Some automobiles have air bags installed on their dashboards as a safety measure. The impact of a collision causes the bag to inflate, and it then cushions a passenger's head when he is thrown forward in the car. Suppose that such a bag could lengthen the collision time between one's head and the dashboard by a factor of 10. What effect would this have on the force exerted on the head?


A) The force would be reduced by a factor of about 3.
B) The force would be reduced by a factor of about 1000.
C) The force would be reduced by a factor of about 10.
D) The force would not be reduced, but the energy transferred to the head would be, thereby minimizing the damage done.
E) The force would be reduced by a factor of about 100.

Explanation / Answer

B) The force would be reduced by a factor of about 1000.

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