COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 5, Problem 5QAP
To determine
(a)
The effect of weight of the book when reduce the applying force to the book in the same spot on the wall.
Expert Solution
Answer to Problem 5QAP
The weight of the book is not changed.
Explanation of Solution
Introduction:
The book is pressed against on the wall. When we reduce the applying force to the book, the book remains in the same spot on the wall.
So the magnitude remains constant. Therefore weight stays the same.
Conclusion:
The weight stays the same.
To determine
(b)
The effect of the normal force of the wall on the book when reduce the applying force to the book in the same spot on the wall.
Expert Solution
Answer to Problem 5QAP
The normal force of the wall on the book decreases.
Explanation of Solution
Introduction:
The book is pressed against on the wall. When we reduce the applying force to the book, the book remains in the same spot on the wall.
When applied force is reduced the normal force decreases.
Conclusion:
The normal force of the wall on the book decreases.
To determine
(c)
The effect of the frictional force of the wall on the book when reduce the applying force to the book in the same spot on the wall.
Expert Solution
Answer to Problem 5QAP
The frictional force of the wall on the book is not changed.
Explanation of Solution
Introduction:
The book is pressed against on the wall. When we reduce the applying force to the book, the book remains in the same spot on the wall.
So the weight of the book is constant. Therefore the frictional force of the wall on the book stays same.
Conclusion:
The frictional force of the wall on the book stays same.
To determine
(d)
The effect of the maximum static frictional force of the wall on the book when reduce the applying force to the book in the same spot on the wall.
Expert Solution
Answer to Problem 5QAP
The maximum static frictional force of the wall on the book deceases.
Explanation of Solution
Introduction:
The book is pressed against on the wall. When we reduce the applying force to the book, the book remains in the same spot on the wall.
When F reduces R decreases. Since
Conclusion:
The maximum static frictional force of the wall on the book deceases.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
A 12 N horizontal force
F
pushes a block weighing 5.3 N against a vertical wall (see the figure). The coefficient of static friction between the wall and the block is
0.61, and the coefficient of kinetic friction is 0.48. Assume that the block is not moving initially. (a) Will the block move? ("yes" or "no")
|(b) In unit-vector notation
what is the force on the block from the wall?
A woman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. The book has a mass of m = 1.7 kg and the coefficient of static friction between her hand and the book is μs = 0.59.
Force minimum?
Two sheets of plywood A and B lie on the bed of the truck.
They have the same weight W, and the coefficient of static friction
between the two sheets of wood and between sheet B and the
truck bed is µg.
(a) If you apply a horizontal force to sheet A and apply no force
sheet B to move? What force is necessary to cause sheet A to start
to sheet B, can you slide sheet A off the truck without causing
moving?
(b) If you prevent sheet A from moving by exerting a horizontal
force on it, what horizontal force on sheet B is necessary to start it
moving?
ܥܪ ܩ
A
B
L
Chapter 5 Solutions
COLLEGE PHYSICS
Ch. 5 - Prob. 1QAPCh. 5 - Prob. 2QAPCh. 5 - Prob. 3QAPCh. 5 - Prob. 4QAPCh. 5 - Prob. 5QAPCh. 5 - Prob. 6QAPCh. 5 - Prob. 7QAPCh. 5 - Prob. 8QAPCh. 5 - Prob. 9QAPCh. 5 - Prob. 10QAP
Ch. 5 - Prob. 11QAPCh. 5 - Prob. 12QAPCh. 5 - Prob. 13QAPCh. 5 - Prob. 14QAPCh. 5 - Prob. 15QAPCh. 5 - Prob. 16QAPCh. 5 - Prob. 17QAPCh. 5 - Prob. 18QAPCh. 5 - Prob. 19QAPCh. 5 - Prob. 20QAPCh. 5 - Prob. 21QAPCh. 5 - Prob. 22QAPCh. 5 - Prob. 23QAPCh. 5 - Prob. 24QAPCh. 5 - Prob. 25QAPCh. 5 - Prob. 26QAPCh. 5 - Prob. 27QAPCh. 5 - Prob. 28QAPCh. 5 - Prob. 29QAPCh. 5 - Prob. 30QAPCh. 5 - Prob. 31QAPCh. 5 - Prob. 32QAPCh. 5 - Prob. 33QAPCh. 5 - Prob. 34QAPCh. 5 - Prob. 35QAPCh. 5 - Prob. 36QAPCh. 5 - Prob. 37QAPCh. 5 - Prob. 38QAPCh. 5 - Prob. 39QAPCh. 5 - Prob. 40QAPCh. 5 - Prob. 41QAPCh. 5 - Prob. 42QAPCh. 5 - Prob. 43QAPCh. 5 - Prob. 44QAPCh. 5 - Prob. 45QAPCh. 5 - Prob. 46QAPCh. 5 - Prob. 47QAPCh. 5 - Prob. 48QAPCh. 5 - Prob. 49QAPCh. 5 - Prob. 50QAPCh. 5 - Prob. 51QAPCh. 5 - Prob. 52QAPCh. 5 - Prob. 53QAPCh. 5 - Prob. 54QAPCh. 5 - Prob. 55QAPCh. 5 - Prob. 56QAPCh. 5 - Prob. 57QAPCh. 5 - Prob. 58QAPCh. 5 - Prob. 59QAPCh. 5 - Prob. 60QAPCh. 5 - Prob. 61QAPCh. 5 - Prob. 62QAPCh. 5 - Prob. 63QAPCh. 5 - Prob. 64QAPCh. 5 - Prob. 65QAPCh. 5 - Prob. 66QAPCh. 5 - Prob. 67QAPCh. 5 - Prob. 68QAPCh. 5 - Prob. 69QAPCh. 5 - Prob. 70QAPCh. 5 - Prob. 71QAPCh. 5 - Prob. 72QAPCh. 5 - Prob. 73QAPCh. 5 - Prob. 74QAPCh. 5 - Prob. 75QAPCh. 5 - Prob. 76QAPCh. 5 - Prob. 77QAPCh. 5 - Prob. 78QAPCh. 5 - Prob. 79QAPCh. 5 - Prob. 80QAPCh. 5 - Prob. 81QAPCh. 5 - Prob. 82QAPCh. 5 - Prob. 83QAPCh. 5 - Prob. 84QAPCh. 5 - Prob. 85QAPCh. 5 - Prob. 86QAPCh. 5 - Prob. 87QAPCh. 5 - Prob. 88QAPCh. 5 - Prob. 89QAPCh. 5 - Prob. 90QAP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A block of ice (m = 15.0 kg) with an attached rope is at rest on a frictionless surface. You pull the block with a horizontal force of 95.0 N for 1.54 s. a. Determine the magnitude of each force acting on the block of ice while you are pulling. b. With what speed is the ice moving after you are finished pulling? Repeat Problem 71, but this time you pull on the block at an angle of 20.0.arrow_forwardA wedge with mass M rests on a frictionless, horizontal tabletop. A block with mass m is placed on the wedge, and a horizontal force F S is applied to the wedge (Fig.). What must the magnitude of F S be if the block is to remain at a constant height above the tabletop?arrow_forwarda) A delivery truck with two stacked crates in the back brakes quickly. The crate on the bottom just barely stays put on the floor of the truck. Does the top crate stay put or does it fall off? The top crate has a mass of 27.0 kg and the mass of the bottom crate is 22.0 kg. The coefficient of static friction between the bottom crate and the truck is 0.420, and the coefficient of kinetic friction for that surface is 0.350. The coefficient of static friction between the crates is 0.400, and the coefficient of kinetic friction is 0.320. Hint: Don’t forget about Newton’s 3rd Law especially when dealing with friction between the two crates b) The top crate will slide off if it moves more than 87.5 cm. If the truck braked for 1.84 s did the top crate slide off? If not, how far did it move?arrow_forward
- One block rests upon a horizontal surface. A second identical block rests upon the first one. The coefficient of static friction between the blocks is the same as the coefficient of static friction between the lower block and the horizontal surface. A horizontal force is applied to the upper block, and its magnitude is slowly increased. When the force reaches 40.4 N, the upper block just begins to slide. The force is then removed from the upper block, and the blocks are returned to their original configuration. What is the magnitude of the horizontal force that should be applied to the lower block, so that it just begins to slide out from under the upper block?arrow_forwardA block of wood weighing 4N is placed on a horizontal table. It is then pulled by means of a spring balance attached to one of it's ends. The block just begins to move when the spring balance records a horizontal force of 2.5N. 1) what is the coefficient of static friction? 2) what is the frictional force when a horizontal force of 2.0N is recorded by the spring balancearrow_forwardLet there be 2 blocks stacked on a table. The top block has a mass of 2.0 kg, and the bottom block has a mass of 5.0 kg. The coefficient of static friction between the two blocks is 0.40, and the coefficient of static friction between the bottom block and table is 0.10. What is the maximum horizontal force you can apply to the top block such that neither block moves?arrow_forward
- A woman exerts a constant horizontal force on a large box. As a result, the box moves across a horizontal floor at a constant speed "v0". The constant horizontal force applied by the woman: has the same magnitude as the weight of the box. is greater than the weight of the box. has the same magnitude as the total force which resists the motion of the box. is greater than the total force which resists the motion of the box. is greater than either the weight of the box or the total force which resists its motion. If the woman in the previous question doubles the constant horizontal force that she exerts on the box to push it on the same horizontal floor, the box then moves: with a constant speed that is double the speed "v0" in the previous question. with a constant speed that is greater than the speed "v0" in the previous question, but not necessarily twice as great. for a while with a speed that is constant and greater than the speed "v0" in the previous question, then with a speed…arrow_forwardA 3 kg box rests on a horizontal table. It is attached to a 2 kg box via a pulley. The 2 kg box hangs over the edge of the table. The 2 kg box is 2 meters from the ground. a) What is the minimum coefficient of static friction such that the objects remain at rest. b) If the coefficient of static friction is less than that in part (a) and the coefficient of kinetic friction between the box and the table is 0.30, find the time the 2 kg mass falls the 2 meters to the floor. Assume the system starts from rest.arrow_forwardA person is doing leg lifts with 3.00-kg ankle weights. The lower leg itself has a mass of 5.00 kg. When the leg is held still at an angle of 30.0° with respect to the horizontal, the patellar tendon pulls on the tibia with a force of 362 N at an angle of 20.0° with respect to the lower leg. Assume the force exerted on the tibia by the femur is the only other significant force acting on the lower leg. a.)Find the magnitude of the force exerted on the tibia by the femur. b.)At what angle below the horizontal does the force exerted on the tibia by the femur act? Enter the angle in degrees where positive indicates right of the horizontal and negative indicates left of the horizontal.arrow_forward
- A box of banana weighing 40.0 N rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.40, and the coefficient of kinetic friction is 0.20. (a) If no horizontal force is applied to the box and the box is at rest, how large is the friction force exerted on the box? (b) What is the magnitude of the friction force if a monkey applies a horizontal force of 6.0 N to the box and the box is initially at rest? (c) What minimum horizontal force must the monkey apply to start the box in motion? (d) What minimum horizontal force must the monkey apply to keep the box moving at constant velocity once it has been started? (e) if the monkey applies a horizontal force of 18.0 N, what is the magnitude of the friction force and what is the box's acceleration?arrow_forwardAs shown above an adhesive has been applied to contacting faces of two blocks so that the blocks interact with an adhesive force that has a magnitude, Fadhesion. A tension, T, is exerted by a wire attached to the upper blocks causing the blocks to remain at rest. The two blocks have weights, Wbottom and Wtop. Which of the following must be true? Wtop=T Wbottom=Fadhesion T=Wtop−Fadhesion T=Wbottom+Wtop+Fadhesionarrow_forwardLogs weighing 1.3 kg and 2.2 kg lie on a flat surface and are connected by a rope that breaks at a force of 20 N. The coefficient of friction between the lighter log and the base is 0.50, and between the heavier log and the base 0.30. With what maximum force can we pull the lighter log so that the string does not break?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY