CONCEPTUAL PHYSICS-W/PRACTICING PHYSICS
9th Edition
ISBN: 9780321052025
Author: Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 25A
The speed of falling rain is the same 10 m above ground as it is just before it hits the ground. What does this tell you about whether or not the rain encounters air resistance?
Expert Solution & Answer
To determine
To Explain: Whether the rain encounters air resistance or not.
Answer to Problem 25A
Yes, the rain encounters air resistance.
Explanation of Solution
Introduction:
Terminal velocity: It is the maximum velocity that is attained by an object when it falls through a fluid. When force due to gravity becomes equal to air resistance force, at that moment,the velocity of rain will be said to beat terminal velocity.
At some point, the force due to gravity becomes equal to air resistance force due to which speed of falling rain will remain the same, that is, at 10m above the ground, and the moment before it hits the ground. Thus, it can be said that the rain has reached its terminal velocity.
Conclusion:
Therefore, rain encounters air resistance.
Chapter 5 Solutions
CONCEPTUAL PHYSICS-W/PRACTICING PHYSICS
Ch. 5 - How does a vector quantity differ from a scalar...Ch. 5 - Why is speed classified as a scalar quantity and...Ch. 5 - If a vector that is 1 cm long represents a...Ch. 5 - When a rectangle is constructed in order to add...Ch. 5 - Will a vector at 45 to the horizontal be larger or...Ch. 5 - Why does a bowling ball move without acceleration...Ch. 5 - In the absence of air resistance, why does the...Ch. 5 - How does the downward component of the motion of a...Ch. 5 - At the instant a ball is thrown horizontally over...Ch. 5 - a. How far below an initial straight-line path...
Ch. 5 - Neglecting air resistance, if you throw a ball...Ch. 5 - a. Neglecting air resistance, if you throw a...Ch. 5 - What do we call a projectile that continually...Ch. 5 - The vectors represent initial velocities of...Ch. 5 - A toy car rolls off tables of various heights at...Ch. 5 - Water balloons of different masses are launched by...Ch. 5 - The airplane is blown off course by wind in the...Ch. 5 - For Questions 18—19, recall that when two...Ch. 5 - For Questions 18—19, recall that when two...Ch. 5 - For Questions 20—21, recall that the resultant V...Ch. 5 - For Questions 20—21, recall that the resultant V...Ch. 5 - Whenever you add 3 and 4, the result is 7. This is...Ch. 5 - Christopher can paddle a canoe in still water at 8...Ch. 5 - How does the vertical distance a projectile falls...Ch. 5 - The speed of falling rain is the same 10 m above...Ch. 5 - Marshall says that when a pair of vectors are at...Ch. 5 - How is the horizontal component of velocity for a...Ch. 5 - Rain falling vertically will make vertical streaks...Ch. 5 - An airplane encounters a wind that blows in a...Ch. 5 - A projectile is launched vertically at 50 m/s. If...Ch. 5 - A batted baseball follows a parabolic path on a...Ch. 5 - When air resistance acts on a projectile, does it...
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