Concept explainers
You can compare your reaction time with that of a friend by catching a ruler that is dropped between your fingers. Let your friend hold the ruler as shown in the figure.
Snap your fingers together as soon as you see the ruler released. On what does the number of centimeters that pass through your fingers depend? You can calculate your reaction time in seconds by solving
The factors on which the number of centimeters that will pass through a person fingers depend.
To find: The reaction time of a person.
To compare: The reaction time of a person and his time.
Answer to Problem 59A
The numbers of centimeter pass through fingers directly depends on person average reaction time.
Person average reaction time is
The reaction time of the friend is 0.142 seconds.
Explanation of Solution
Given:
The given figure is shown below.
Formula used:
Reaction time is given by the following formula;
Calculation:
Assume that, a person snap fingers at 8 cm on ruler and his friend snap fingers at 10 cm on ruler
So, for person
The friend’s average reaction time is,
It is observed that reaction time of a person is less than the friend’s reaction time. If reaction time is more than centimetres, it will snip between the fingers. Thus, it can be concluded that the numbers of centimeters that will pass through fingers depends onaverage reaction time.
Chapter 4 Solutions
Conceptual Physics: The High School Physics Program
Additional Science Textbook Solutions
Physics: Principles with Applications
Essential University Physics: Volume 1 (3rd Edition)
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
The Cosmic Perspective Fundamentals (2nd Edition)
Conceptual Integrated Science
- 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