The two blocks (m = 16 kg and M = 88 kg) in Fig. 6-39 are not
Question:
The two blocks (m = 16 kg and M = 88 kg) in Fig. 6-39 are not attached to each other. The coefficient of static friction between the blocks is ?s= 0.38, but the surface beneath the larger block is frictionless. What is the minimum magnitude of the horizontal force F required to keep the smaller block from slipping down the larger block?
Frictionless
Step by Step Answer:
The freebody diagrams for the two blocks treated individually are shown below first ...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 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...
-
The coefficient of static friction between hard rubber and normal street pavement is about 0.8. On how steep a hill (maximum angle) can you leave a car parked?
-
5. Vehicle crumple zones are designed to absorb energy during an impact by deforming to reduce transfer of energy to occupants. How much kinetic energy, in Btu, must a crumple zone absorb to fully...
-
From what sources can a company raise capital? Do these different sources of capital all charge the same rate? Why or why not?
-
The file S02_10.xlsx contains midterm and final exam scores for 96 students in a corporate finance course. a. Create a histogram for each of the two sets of exam scores. b. What are the mean and...
-
Barry Sudduth has deposited \($28,367.61\) in an account for his sons college education. The account yields a 5% interest rate. Barry's son is allowed to withdraw \($8,000.00\) at the end of each of...
-
In May, a homeowner made a contract with a roofer to make repairs to her house by July 1. The roofer never came to repair the roof, and heavy rains in the fall damaged the interior of the house. The...
-
Explain how aggregate is best implemented to reduce cycle inventory in a supply chain?
-
Find 0.900 and 0.100 probability limits for a c chart when the process average is equal to 16 nonconformities.
-
A toy chest and its contents have a combined weight of 180N. The coefficient of static friction between toy chest and floor is 0.42.The child in Figure attempts to move the chest across the floor by...
-
In Figure, a slab of mass m 1 = 40 kg rests on a frictionless floor, and a block of mass m 2 = 10 kg rests on top of the slab. Between block and slab, the coefficient of static friction is 0.60, and...
-
Access eBays February 6, 2017, filing of its 10-K report for the year ended December 31, 2016, at SEC.gov. Required 1. What is the amount of eBays net accounts receivable at December 31, 2016, and at...
-
BuyUS Inc. plans to issue 7%, $400,000, 10-year bonds in order to finance an expansion. The expansion is expected to increase income before interest expense from $100,000 to $175,000. BuyUS has...
-
looking for assistance on finding key/important information on each of these topics. If there are any useful graphs or anything of that nature would be a great help to. 1. General version control...
-
The country's three mobile phone operators, Celcom, Maxis and Digi have all applied for 5G licence. The government has made it clear that only two licences will be awarded. Winning a 5G licence is...
-
Suppose you have to invest $15,000 at an interest rate of 3.5% (compounded quarterly) for a period of 5 years. What will be the value of your investment at the end of 5 years? 9. You have $900 to...
-
You are planning for an early retirement, so you decide to invest $5,000 per year, starting at age 23. You plan to retire when you accumulate $1,000,000. If the average rate of return on your...
-
Preparing working papers is an integral part of a financial statement audit. Required: 1. a. What are the purposes or functions of audit working papers? b. What records may be included in audit...
-
To help you become familiar with the accounting standards, this case is designed to take you to the FASBs Web site and have you access various publications. Access the FASBs Web site at...
-
Find the following for path A in Figure 3.49: (a) The total distance traveled, and (b) The magnitude and direction of the displacement from start to finish. W N to S Start E D B
-
You throw a ball from a cliff with an initial velocity of 15.0 m/s at an angle of 20.0 below the horizontal. Find (a) its horizontal displacement and (b) its vertical displacement 2.30 s later.
-
A baseball is hit at Fenway Park in Boston at a point 0.762 m above home plate with an initial velocity of 33.53 m/s directed 55.0 above the horizontal. The ball is observed to clear the 11.28-m-high...
-
A transcontinental flight of 4350 km is scheduled to take 50 min longer westward than eastward. The airspeed of the airplane is 966 km/h, and the jet stream it will fly through is presumed to move...
-
A doctor is measuring body temperature for patients visiting the office. The doctor believes the average body temperature is less than 98.6 degrees Fahrenheit and would like to test this claim....
-
Generate a regression model to predict the scores of test No. 2 based upon the scores of test No. 1 score. What would your model predict for someone who got 46 in test No. 1?What are the slope and...
-
Easter never occurs in February. You Answered No Easters are in February. All times that are not February are times Easter occurs. All times Easter occurs are not times in February. All times in...
Study smarter with the SolutionInn App