Concept explainers
How great is the air resistance that acts on a 10-N sack that falls in air at constant velocity?
The air resistance acting on a falling
Answer to Problem 9A
Explanation of Solution
Introduction:
When an object falls with its terminal velocity, then it means that no net acceleration is acting on it or the object moves with a constant velocity.
Since when the sack is falling with a constant velocity, thus it means that it reaches the terminal velocity, and thereby the net acceleration of the object is zero. Hence, for the given sack, it can be written as,
Where,
Conclusion:
Hence, the air resistance acting on a falling sack is
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Conceptual Physics: The High School Physics Program
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