Concept explainers
A pair of 50-N weights are attached to a spring scale as shown. Does the spring scale read 0, 50, or 100 N? (Hint: Would it read any differently if one of the strings were held by your hand instead of being attached to the 50-N weight?)
Whether the spring scale read 0, 50, or 100 N.
Answer to Problem 46A
The spring scale reads
Explanation of Solution
Introduction:
The expression for Newton’s third law of motion as follows:
Here,
The spring scale produces the tension. Due to the 50 N weight, the tension on the spring scale is 50 N i.e. 50 N force is exerted on each end of the spring scale due to the 50 N weight.
Thus, the net force on the spring is zero due to the constant velocity. The spring scale produces only the tension force.
Conclusion:
Thus, the spring scale reads
Chapter 7 Solutions
Conceptual Physics: The High School Physics Program
Additional Science Textbook Solutions
College Physics: A Strategic Approach (4th Edition)
College Physics (10th Edition)
Conceptual Integrated Science
The Cosmic Perspective
College Physics
The Cosmic Perspective (8th Edition)
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON