Concept explainers
To Choose: The correct option.
Answer to Problem 39R
Option (A) is the correct answer.
Explanation of Solution
Formula used:
The equation of motion is,
Here,
Calculation:
Rearranging the equation (1),
The car would possess an acceleration when it start from rest to attain top speed or coming down from the top speed to halt. It also has acceleration when it speed is constant but change in direction.
So, the option (B), (C) and (D) are wrong.
The car doesn’t have acceleration only when the speed is constant without change in direction or it is at rest.
Conclusion:
Hence, a car moves at
Chapter 2 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Additional Science Textbook Solutions
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Physics (5th Edition)
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