CONCEPTUAL PHYSICS-W/PRACTICING PHYSICS
9th Edition
ISBN: 9780321052025
Author: Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 8A
How does the downward component of the motion of a projectile compare with the motion of free fall?
Expert Solution & Answer
To determine
To compare: Thedownward component of the motion of a projectile with the motion of free fall.
Answer to Problem 8A
Thedownward component of the motion of a projectile with the motion of free fall are equal.
Explanation of Solution
Introduction:
A projectile is an object that moves through air or space, and is acted upon by the effect of gravity only.
Now, on the projectile no acceleration acts in horizontal direction while the gravity acts in vertical direction. Hence, the downward component of the motion of a projectile will be acted upon by the gravity only. Also, it is known that the free fall occurs when an object falls freely under the effect of gravity.
Conclusion:
Therefore, the motion of a free fall and the downward component of the motion of projectile are equal.
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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