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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman
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BIO Automobile Air Bags. The human body can survive an

Chapter 2, Problem 23E

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QUESTION:

BIO Automobile Air Bags.? The human body can survive an acceleration trauma incident (sudden stop) if the magnitude of the acceleration is less than 250 m/s2. If you are in an automobile accident with an initial speed of 105 km/h (65 mi/h) and are stopped by an airbag that inflates from the dashboard, over what distance must the airbag stop you for you to survive the crash?

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QUESTION:

BIO Automobile Air Bags.? The human body can survive an acceleration trauma incident (sudden stop) if the magnitude of the acceleration is less than 250 m/s2. If you are in an automobile accident with an initial speed of 105 km/h (65 mi/h) and are stopped by an airbag that inflates from the dashboard, over what distance must the airbag stop you for you to survive the crash?

ANSWER:

Solution 23E Step 1 If the initial velocity of an object is u and the final velocity is v and the acceleration of the object is a, then the distance s travelled by the object is given by Now if the final velocity v = 0 then the above equation will become

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