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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
22 Dec 2021

Given information

Given :

Initial velocity,  

 

Final velocity, v = 0 m/s

Acceleration,  

car's velocity decreases from 20.8m/s to 0m/s at the rate of , hence sign is negative. 

Step-by-step explanation

Step 1.

By using equation of motion,

 

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