College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 "g's."

Calculate the magnitude of the force on a 62-kg person accelerating at this rate. Express your answer to two significant figures and include the appropriate units.
F= ____________ units
 
What distance is traveled if brought to rest at this rate from 120 km/h?
Express your answer to two significant figures and include the appropriate units.
d= _____________ units
 
Expert Solution
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Step 1

According to Newtons second law of motion

F=ma                      ......(1)

where m is the mass of the body

           a is the acceleration

To body is stopped that means the final velocity will be zero.

use equation:

v2=u2+2as          ......(2)

 

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