27 Oct 2021
Problem 19
Page 43
Section: Problems
Chapter 2: Describing motion: Kinematics in one dimension
Textbook ExpertVerified Tutor
27 Oct 2021
Given information
what is the magnitude of its acceleration (assumed constant) in
and in .
Step-by-step explanation
Step 1.
We know that :the average velocity defined as the displacement travelled divided by the time elapsed.
=
Where :
- is the average acceleration .
- is the displacement travelled .
- is the time the car took to stop .
- is the the time the car took to make this displacement with constant velocity .
- is the final average velocity of the car.
- is the initial average velocity car.
From Givens we know that : ,
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