Concept explainers
You are on a pirate ship and being forced to walk the plank (Fig. 9-68) You are standing at the point marked C. The plank is nailed onto the deck at point A, and rests on the support 0.75 m away from A The center of mass of the uniform plank is located at point B. Your mass is 65 kg and the mass of the plank is 45 kg. What is the minimum downward force the nails must exert on the plank to hold it in place?
Figure 9-68
The minimum downward force the nails must exert on the plank to hold it in place.
Answer to Problem 28P
Solution:The minimum downward force that the nails must exert to hold the plank in its place is
Explanation of Solution
Given:
Mass of the man,
Mass of the plank,
Formula used:
For rotational equilibrium
Calculation:
Conclusion:
Thus, the minimum downward force that the nails must exert to hold the plank in its place
Chapter 9 Solutions
Physics: Principles with Applications
Additional Science Textbook Solutions
Modern Physics
Tutorials in Introductory Physics
An Introduction to Thermal Physics
The Cosmic Perspective Fundamentals (2nd Edition)
Essential University Physics: Volume 1 (3rd Edition)
College Physics: A Strategic Approach (3rd 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