Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
1st Edition
ISBN: 9780078945830
Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike
Publisher: Glencoe Mcgraw-Hill
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Chapter 3, Problem 7STP
To determine

The time interval for which the net force on the book is opposite to the motion of the book.

Expert Solution & Answer
Check Mark

Answer to Problem 7STP

Option (B) is correct.

Explanation of Solution

Introduction:

The slope of the speed-time graph is same as the acceleration of the object and acceleration is the measure of the force on an object. If slope of the speed-time graph is positive, then the motion of the object remains in the direction of the force on the object and motion become opposite to force on decreasing the slope.

The slope of the object in the graph increases for the time interval Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 3, Problem 7STP , additional homework tip  1to Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 3, Problem 7STP , additional homework tip  2So, the net force on the object acts along the motion of the object. The slope starts decreasing from the Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 3, Problem 7STP , additional homework tip  3and decreases up to Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 3, Problem 7STP , additional homework tip  4So, the force on the object for time interval Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 3, Problem 7STP , additional homework tip  5to Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 3, Problem 7STP , additional homework tip  6acts opposite to the motion of the object.

Conclusion:

Thus, the net force on the book for the time interval Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 3, Problem 7STP , additional homework tip  7to Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 3, Problem 7STP , additional homework tip  8acts opposite to the motion of the object.

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