Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7, Problem 1PLA
For kinetic friction the direction of the frictional force on a given object is always opposite the direction of that object’s motion. (a) true (b) false
Expert Solution & Answer
To determine
Whether the statement is true or false.
Answer to Problem 1PLA
Option (a) True
Explanation of Solution
Kinetic friction is the force that acts between moving surfaces that are in mutual interaction with each other. This force always acts in the direction opposite to the motion of the object on the surface.
Therefore, the given statement is true.
Conclusion:
Option (a) is correct. For kinetic friction the direction of the frictional force on a given object is always opposite the direction of that object’s motion.
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
If two surfaces are in contact and moving relative to one another, then the friction between them is called kinetic friction.
a) True
b) False
A block (mass = 200.00 g) is placed on an inclined plane 45 degrees from the horizontal. The coefficient of static and kinetic friction between the block and the plane are 0.54 and 0.35, respectively. What is the frictional force between the block and the plane?
If the coefficient of kinetic friction, , between the block and the surface is 0.30 and the magnitude of the frictional force is 80.0 N, what is the weight of the block? ( Assume the block is on a horizontal surface)
Chapter 7 Solutions
Physics Laboratory Manual
Ch. 7 - For kinetic friction the direction of the...Ch. 7 - The two coefficients of friction discussed in this...Ch. 7 - Suppose a block of mass 25.0 kg rests on a...Ch. 7 - To measure the coefficient of kinetic friction by...Ch. 7 - A 5.00 kg block rests on a horizontal plane. A...Ch. 7 - Both types of coefficient of friction are...Ch. 7 - For either type of coefficient of friction, what...
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 hockey puck has a coefficient of kinetic friction of μk = .10. If the puck feels a normal force (FN) of 5 N, what is the frictional force that acts on the puck?arrow_forwardIf a box on a horizontal surface has an externally applied horizontal force less than the maximum static frictional force, the box has a motion relative to the surface equal to?arrow_forwardA 100 kg block is at rest on a flat floor with a coefficient of static friction 0.62. A horizontal force of 3.7 N is applied to the block, but it does not budge. What is the magnitude of the frictional force on the block applied?arrow_forward
- A mass m is being pushed by a horizontal force F of magnitude 209.0 N. The coefficient of kinetic friction between the two surfaces is 0.4. What is the magnitude of the acceleration of this mass as it gets to be pushed up the ramp?arrow_forwardWhen one body is actually moving over the surface of other body, the friction is known as: [A] Kinetic friction [B] Limiting friction [C] Static friction [D] Negative frictionarrow_forwardThe maximum possible value for the coefficient of static friction is a. 0.50 b. 1.00 c. a value up to but not quite 1.00 d. greater than 1.00arrow_forward
- Which of the following statements about friction is not true? * A. An object of large mass is pulled down onto a surface with a greater force than an object of low mass and, as a consequence, experiences a greater friction B. The direction of friction is always opposite to the direction of motion C. Friction is a force D. The direction of friction is always the same as the direction of motionarrow_forwardIf a box on a horizontal surface has an externally applied horizontal force that exceeds the value of the static frictional force, the box is defined to be.arrow_forwardA 20 kg sled is being pulled along the ground by a 100 N force directed 30° above horizontal. Given the coefficient of kinetic friction between the sled and the snow is 0.100, what is the magnitude of the friction acting on the sled?arrow_forward
- A 4.00 kg block rests on a 30 degree incline. If the coefficient of the static friction between the block and the incline is 0.700, what magnitude of horizontal force F must act on the block to start it moving up the incline?arrow_forwardFriction force is inversely proportional to the magnitude of the normal force exerted on an object by the surface true or falsearrow_forwardA 50 kg wooden crate rests on a horizontal concrete floor. The coefficient of friction is Ms= 0.7. What is the magnitude of the frictional force?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Newton's Second Law of Motion: F = ma; Author: Professor Dave explains;https://www.youtube.com/watch?v=xzA6IBWUEDE;License: Standard YouTube License, CC-BY