(a) Suppose that a NASCAR race car is moving to the right with a constant velocity of +92.0 m/s. What is the average acceleration of the car? (b) 12.0 seconds later, the car is halfway around the track and traveling in the opposite direction with the same speed. What is the average acceleration of the car? (a) ā= i (b) a = i

Physics for Scientists and Engineers
10th Edition
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section2.6: Motion Diagrams
Problem 2.6QQ: Which one of the following statements is true? (a) If a car is traveling eastward, its acceleration...
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(a) Suppose that a NASCAR race car is moving to the right with a constant velocity of +92.0 m/s. What is the average acceleration of
the car? (b) 12.0 seconds later, the car is halfway around the track and traveling in the opposite direction with the same speed. What is
the average acceleration of the car?
(a) ā= i
(b) a = V
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Transcribed Image Text:View Policies Show Attempt History Current Attempt in Progress (a) Suppose that a NASCAR race car is moving to the right with a constant velocity of +92.0 m/s. What is the average acceleration of the car? (b) 12.0 seconds later, the car is halfway around the track and traveling in the opposite direction with the same speed. What is the average acceleration of the car? (a) ā= i (b) a = V eTextbook and Media GO Tutorial V Save for Later Attempts: 1 of 5 used Submit Answer
Expert Solution
Step 1

Given that,

a)

In the first case

The velocity of the car is constant and it is v1=92m/s

b)

In the first case

After time t=12s

At the distance x=L2

where L is the length of the track

The velocity of the car is v2=-92m/s

Where the negative sign indicates that the direction is left and the positive sign indicates that the direction is right.

 

To find the average acceleration of both cases.

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