Suppose that the race car is moving to the right with a constant veloci 82 m/s. What is the average acceleration of the car? Twelve seconds the car is halfway around the track and traveling in the opposite directi with same speed. What is the average acceleration of the car? Verify t your answers agree with your answers to the Concept Questions.

College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter2: Kinematics
Section: Chapter Questions
Problem 65PE: A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See Figure 2.67). (a)...
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Problem
Suppose that the race car is moving to the right with a constant velocity of
82 m/s. What is the average acceleration of the car? Twelve seconds later,
the car is halfway around the track and traveling in the opposite direction
with same speed. What is the average acceleration of the car? Verify that
your answers agree with your answers to the Concept Questions.
Transcribed Image Text:Problem Suppose that the race car is moving to the right with a constant velocity of 82 m/s. What is the average acceleration of the car? Twelve seconds later, the car is halfway around the track and traveling in the opposite direction with same speed. What is the average acceleration of the car? Verify that your answers agree with your answers to the Concept Questions.
Conceptual Questions
The acceleration of a NASCAR race car is zero. Does this necessarily
mean that the velocity of the car is zero? If the speed of the car is
constant as it goes around the track, is its average acceleration
necessarily zero? Justify your answers.
Transcribed Image Text:Conceptual Questions The acceleration of a NASCAR race car is zero. Does this necessarily mean that the velocity of the car is zero? If the speed of the car is constant as it goes around the track, is its average acceleration necessarily zero? Justify your answers.
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