The horsepower engine which is required if
Answer to Problem 69P
Solution:
Explanation of Solution
Given:
Weight of skier
Angle made by hill with horizontal
Distance moved by skier
Time take taken
Co efficient of kinetic friction
Concept used:
Work
Power,
Where, W is work done and t is the time.
Calculation:
Work done by force of rope to move a skier from bottom to top of hill
N : normal force
F : friction force
Mg : weight of one skier
Skier moves with constant speed, so net force acting on skier is zero.
For equilibrium perpendicular to plane of hill
For equilibrium along the plane of hill,
Work done by pulling force to move one skier from bottom of hill to top of hill
So, the work done by pulling force to move 30 skiers (maximum):
Rope is moved by engine so work done by engine
Power of engine
Because
Conclusion: Power of engine to work with maximum capacity to move 30 skiersshould be equal to
Chapter 6 Solutions
Physics: Principles with Applications
Additional Science Textbook Solutions
Physics (5th Edition)
Tutorials in Introductory Physics
University Physics Volume 2
The Cosmic Perspective Fundamentals (2nd Edition)
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Essential University Physics (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