Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Textbook Question
Chapter 3, Problem 3RAT
An object in free fall undergoes an increase in
(a) speed.
(b) acceleration.
(c) both speed and acceleration.
Expert Solution & Answer
To determine
The correct option for the statement "An object in free fall undergoes an increase in".
Answer to Problem 3RAT
The correct option for the statement "An object in free fall undergoes an increase in" is option (a).
Explanation of Solution
In the condition of free-falling of an object, only the influence of gravity is considered over a body, and other forces are neglected. The acceleration of the free-falling body is always equal to the gravitational acceleration of the planet.
Thus, the acceleration of the free-falling body remains constant throughout the fall, but its speed is continuously increasing with time because a constant acceleration acts over the free-falling object. From this, it is concluded that option (a) will be correct in the given options.
Conclusion:
Therefore, the correct option for the statement "An object in free fall undergoes an increase in" is option (a).
Chapter 3 Solutions
Conceptual Physical Science Explorations
Ch. 3 - Distinguish between velocity and acceleration.Ch. 3 - When are you aware of motion in a moving...Ch. 3 - What is the acceleration of free fall?Ch. 3 - Is acceleration proportional to net force or does...Ch. 3 - What relationship does mass have to inertiaCh. 3 - What relationship does mass have to weight?Ch. 3 - Fill in the blanks: Shake something to and fro and...Ch. 3 - What is the weight of a brick?Ch. 3 - Is acceleration directly proportional to mass, or...Ch. 3 - Prob. 10RQ
Ch. 3 - If the mass of a sliding block is somehow tripled...Ch. 3 - Suppose you exert a horizontal push on a crate...Ch. 3 - As you increase your push, will friction on the...Ch. 3 - Once the crate is sliding, how hard do you push to...Ch. 3 - What is meant by free fall?Ch. 3 - Why doesnt a heavy object accelerate more than a...Ch. 3 - The ratio of circumference/diameter for all...Ch. 3 - What two principal factors affect the force of air...Ch. 3 - What is the acceleration of a falling object when...Ch. 3 - If two objects of the same size fall through air...Ch. 3 - Calculate the acceleration of a ball rolling down...Ch. 3 - Calculate the acceleration of a bike that goes...Ch. 3 - Calculate the acceleration of a crate of softball...Ch. 3 - Calculate the acceleration of a , single-engine...Ch. 3 - Compare from greatest to least, the accelerations...Ch. 3 - Boxes of chocolates of various masses on a...Ch. 3 - Compare from greatest to least the accelerations...Ch. 3 - What is the net force on a bright red Mercedes...Ch. 3 - On a long alley a bowling ball slows down as it...Ch. 3 - In the orbiting space shuttle you are handed two...Ch. 3 - In the orbiting space shuttle you are handed two...Ch. 3 - What happens to your weight when you mass...Ch. 3 - When a junked car is crushed into a compact cube,...Ch. 3 - What is the net force on a apple when you hold it...Ch. 3 - On which of these hills does the ball roll down...Ch. 3 - Prob. 9TECh. 3 - A bear that weights grasps a vertical tree and...Ch. 3 - Prob. 11TECh. 3 - What is the acceleration of a ball at the top of...Ch. 3 - Aristotle claimed the speed of a falling object...Ch. 3 - Two pumpkins are dropped from a high building...Ch. 3 - In a vacuum, a coin and a feather fall equally,...Ch. 3 - How does the force of gravity on a raindrop...Ch. 3 - Upon which will air drag be greater; a sheet of...Ch. 3 - Why is it that a cat that accidentally falls from...Ch. 3 - How does the terminal speed of a parachutist...Ch. 3 - How does the gravitational force on a falling body...Ch. 3 - One pound is the same as 4.45 newtons. What is the...Ch. 3 - Consider a 40-kg block of cement when pulled...Ch. 3 - Consider a mass of 1kg accelerated 1m/s2 by a...Ch. 3 - Consider a jumbo jet of mass 30,000kg in takeoff...Ch. 3 - Leroy, who has a mass of is skateboarding at when...Ch. 3 - Consider a ball that picks up a speed of 2m/s....Ch. 3 - When the ball rolls down the inclined plane in the...Ch. 3 - An object in free fall undergoes an increase in...Ch. 3 - An object with a huge mass also must have a huge...Ch. 3 - If gravity between Sun and Earth suddenly...Ch. 3 - A heavy rock and a light rock in free fall have...Ch. 3 - When a falling object encounters of air...Ch. 3 - The amount of air resistance on a 0.8-N flying...Ch. 3 - If you drop at the same time a regular soccer ball...Ch. 3 - The scientist who found the connection between...
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