Concept explainers
Check Your Understanding Why would it hurt more if you snapped your hand with a ruler than with a loose spring, even if the displacement of each system is equal?
The reason for hand to get hurt more if one snapped hand with a ruler than with a loose spring, even if the displacement of each system is equal.
Answer to Problem 15.1CYU
The ruler will hurt more as ruler will have more impulsive force than a loose spring.
Explanation of Solution
Introduction :
Impulse is defined as the change in momentum.
Also, Impulse force is defined as time take to change momentum
When hand is snapped with ruler or spring, both will have same impulse, that is both stop after hitting.
Given that the displacement of hand in both system − ruler and spring is same.
Now the same displacement of spring will take more time as compared to the displacement of ruler. Thus, time taken to change impulse is more in spring than in ruler.
Because force is indirectly proportional to time taken, the impulsive force is less in spring as compared to ruler.
Conclusion:
Thus, ruler will hurt more than the loose spring.
Want to see more full solutions like this?
Chapter 15 Solutions
University Physics Volume 1
Additional Science Textbook Solutions
Conceptual Physics (12th Edition)
Sears And Zemansky's University Physics With Modern Physics
Physics for Scientists and Engineers with Modern Physics
Cosmic Perspective Fundamentals
Lecture- Tutorials for Introductory Astronomy
Conceptual Physical Science (6th 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