Which is the greater change in momentum, stopping something dead in its track or stopping it and then reversing its direction?
The case in which greater change in momentum will take place, stopping something dead in its tracks or stopping it and then reversing its direction.
Answer to Problem 11RQ
The case in which greater change in momentum will take place is stopping something and then reversing its direction.
Explanation of Solution
The change in momentum can be understood as the difference of final momentum and initial momentum of a body.
Write the expression for change in momentum.
Here,
Write the expression for the momentum of the object.
Write the expression for change in momentum using above both the expressions.
Here,
In the case where an object is stopped in its track, its final velocity becomes zero, that is
Substitute
In the case where an object is stopped and then is moved in reversed direction, the velocity becomes
Write the expression for the change in momentum of the object when the direction of object is revered.
Thus, it can be seen that, in the case where object is stopped and made to move in reverse direction will have greater change in momentum as compared to object stopped dead in its track.
Conclusion:
Therefore, the case in which greater change in momentum will take place is stopping something and then reversing its direction.
Chapter 5 Solutions
Conceptual Physical Science Explorations
Additional Science Textbook Solutions
College Physics
Conceptual Physics (12th Edition)
Lecture- Tutorials for Introductory Astronomy
Life in the Universe (4th Edition)
University Physics with Modern Physics (14th 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