In Fig. 6-63, a block weighing 22 N is held at rest against a vertical wall by
Question:
In Fig. 6-63, a block weighing 22 N is held at rest against a vertical wall by a horizontal force F of magnitude 60 N. The coefficient of static friction between the wall and the block is 0.55, and the coefficient of kinetic friction between them is 0.38. In six experiments, a second force P is applied to the block and directed parallel to the wall with these magnitudes and directions:(a) 34 N, up,(b) 12 N, up,(c) 48 N, up,(d) 62 N, up,(e) 10 N, down, and(f) 18 N, down. In each experiment, what is the magnitude of the frictional force on the block? In which does the block move(g) Up the wall and(h) Down the wall?(i) In which is the frictional force directed down thewall?
F.
Step by Step Answer:
Analysis of forces in the horizontal direction where there can be no acceleration leads to the conclusion that F FM the magnitude of the normal force ...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Related Video
Static friction and kinetic friction are two types of friction that occur when two objects are in contact with each other. Static friction is the force that must be overcome to initiate motion between two surfaces that are in contact with each other but are not moving relative to each other. It is caused by the interlocking of rough surfaces at the microscopic level, and it increases as the force pushing the surfaces together increases. Once motion between the surfaces starts, the static friction is no longer present. Kinetic friction, also known as sliding friction, is the force that opposes the motion of two surfaces that are in contact with each other and are moving relative to each other. It is caused by the rubbing of the surfaces against each other and the resistance of the molecules in the surfaces to being moved. Kinetic friction is generally less than static friction, but it can still be a significant force, especially at high speeds. Both static and kinetic friction can be quantified using a coefficient of friction, which is a dimensionless number that represents the ratio of the frictional force between two surfaces to the normal force (the force perpendicular to the surfaces). The coefficient of static friction is typically greater than the coefficient of kinetic friction for a given pair of surfaces, because it takes more force to overcome the interlocking of the surfaces at rest than to maintain motion once it has started.
Students also viewed these Mechanics questions
-
The coefficient of static friction between a block and a horizontal floor is 0.35, while the coefficient of kinetic friction is 0.22. The mass of the block is 4.6 kg and it is initially at rest. (a)...
-
The coefficient of static friction between a block and a horizontal floor is 0.40, while the coefficient of kinetic friction is 0.15. The mass of the block is 5.0 kg. A horizontal force is applied to...
-
The coefficient of static friction between block A and a horizontal floor is 0.45 and the coefficient of static friction between block B and the floor is 0.30. The mass of each block is 2.0 kg and...
-
In the figure below, which compares different DNA extraction kits (e.g, MO BIO and PSP), which one of the two trees shows the co-occurrence of microbial taxa? Proportion of max 0 0.2 0.4 0.6 0.8...
-
For PepsiCo for the most recent year explain the difference between net income and the change in cash and equivalents. In other words, why is the profit or loss of PepsiCo different from the change...
-
1) What does the story of the EFV suggest about the importance of considering what a projects key mission is supposed to be prior to authorizing it? 2) The EFV has been labeled, The wrong weapon for...
-
Read the following case descriptions and discuss the integration problems using the types of integration presented in Sect. 5.3.4. Which negative effects for information logistics result from the...
-
Trevor Harty, an avid mountain biker, always wanted to start a business selling top-of-the-line mountain bikes and other outdoor supplies. A little over 6 years ago, he and a silent partner opened a...
-
2. You are experimenting with a child's spring-loaded toy rifle. The rifle fires a 50-g plastic pellet using a spring that is compressed a distance, x, of 0.100 m when the rifle is loaded (panel a)....
-
1. Using the Big Five personality factors, describe Ellisons personality characteristics. How do these affect others? 2. Whats Ellison EQ? Why do individuals work for him? MINI CASE Larry Ellison,...
-
A block slides with constant velocity down an inclined plane that has slope angle 0. The block is then projected up the same plane with an initial speed v0. (a) How far up the plane will it move...
-
When a small 2.0 g coin is placed at a radius of 5.0 cm on a horizontal turntable that makes three full revolutions in 3.14 s, the coin does not slip. What are? (a) The coin's speed, the (b)...
-
A manufacturing facility located at 32o N latitude has a glazing area of 60 m2 facing west that consists of doublepane windows made of clear glass (SHGC = 0.766). To reduce the solar heat gain in...
-
QUESTION: Tilam Enterprise is a manufacturing company owned by Chin. The principal business activity is to produce and deliver mattress (using lorry) to its clients. You are required to compute its...
-
Background Alice Fabian is an entrepreneur from Belgium. She trades gourmet chocolate in the European Union. Alice arrived in Singapore on 27 January 2020 to assess market demand for her chocolates...
-
Alpha Ltd is incorporated in Singapore and its shares are listed on the Singapore Stock Exchange. Alpha Ltd's board, by which the company is managed, is comprised of Australian citizens resident in...
-
find similar cases or jurisprudence to this issue? please based to the photo below 28 February 2023 BUREAU OF INTERNAL REVENUE - REVENUE REGION NO. 3 Pagayaya Street, Regional Government Center,...
-
You borrow $24,260 from a bank and agree to pay them back over 10 years making annual payments. The interest rate on the loan is 9.88%. What is your payment amount? Round your answer to the nearest...
-
What is the capacitance of a parallel-plate capacitor that has a plate area \(A\) and a plate separation distance \(d\) ?
-
Separate variables and use partial fractions to solve the initial value problems in Problems 18. Use either the exact solution or a computer-generated slope field to sketch the graphs of several...
-
Find the magnitudes of velocities v A and v B in Figure 3.52 y Vtot = 6.72 m/s tot 23.0% 26.5 22.5 VA Vtot = VA + VB VB X
-
Ruby lases at a wavelength of 694 nm. A certain ruby crystal has 4.00 x 1019 Cr ions (which are the atoms that lase).The lasing transition is between the first excited state and the ground state, and...
-
Figure 40-25 is an energy-level diagram for a fictitious three-dimensional infinite potential well that contains one electron. The number of degenerate states of the levels is indicated: "non" means...
-
Where sunlight shines on the atmosphere of Mars, carbon dioxide molecules at an altitude of about 75 km undergo natural laser action. The energy levels involved in the action are shown in Fig. 40-26;...
-
Identify the role and function of the major components of the Canadian criminal justice system Demonstrate the manner in which the criminal justice system components relate and interact with each...
-
Design a Turing Machine (TM) for the following language, give formal description of the TM and draw state diagram: {w|w is a string over the alphabet {0, 1} and number of 1's in w is divisible by 3}....
-
Jimmy John Hunter owns a small farm outside Winona and was getting very frustrated with turkey vultures that pester his sleeping livestock to the point where his chickens are laying fewer eggs. A few...
Study smarter with the SolutionInn App