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

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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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
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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