In Figure a block slides along a path that is without friction until the block reaches the
Question:
In Figure a block slides along a path that is without friction until the block reaches the section of length L = 0.75m, which begins at height h = 2.0m on a ramp of angle θ = 30o. In that section, the coefficient of kinetic friction is 0.40. The block passes through point A with a speed of 8.0 m/s. If the block can reach point B (where the friction ends), what is its speed there, and if it cannot, what is its greatest height above A?
0 B
Step by Step Answer:
We will refer to the point where it first encounters the rough region as point C this is the point a...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
-
In Figure a block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a...
-
In Figure a block of ice slides down a frictionless ramp at angle = 50o while an ice worker pulls on the block (via a rope) with a force Fr that has a magnitude of 50N and is directed up the ramp....
-
In Figure a block is released from rest at height d = 40 cm and slides down a frictionless ramp and onto a first plateau, which has length d and where the coefficient of kinetic friction is 0.50. If...
-
Titanium metal requires a photon with a minimum energy of 6.94 10 - 19 J to emit electrons. (a) What is the minimum frequency of light necessary to emit electrons from titanium via the photoelectric...
-
a. "The FDIC recently subsidized a buyer for a failing bank, which had different effects on FDIC costs than if the FDIC closed the bank." b. "Bank of America has pursued the acquisitions of many...
-
The table here shows the average number of births per day in the United States as reported by the CDC (Centers for Disease Control). Based on this information, what is the probability that one baby...
-
Yazaki Corporation and DENSO Corporation are both Japanese companies that supply electrical components to manufacturers of automobiles. Following an investigation by the U.S. Department of Justice in...
-
Classification IssuesIntangible Asset Langrova Inc. has the following amounts included in its general ledger at December 31, 2010. (a) On the basis of the information above, compute the total amount...
-
1 2 34 What is "SWOT analysis? How do you carry it for a technical educationalinstitute? What is corporate planning? Explain the process of corporate planning? Discuss the process of strategy...
-
Compare the experiences implementing internal social networks of the two organizations. Why were they successful? What role did management play in this process?
-
A particle can slide along a track with elevated ends and a flat central part, as shown in Figure. The flat part has length L = 40cm. The curved portions of the track are frictionless, but for the...
-
The cable of the 1800 kg elevator cab in Figure snaps when the cab is at rest at the first floor, where the cab bottom is a distance d = 3.7 m above a spring of spring constant k = 0.15 MN/m. A...
-
Follete Inc. operates at capacity and makes plastic combs and hairbrushes. Although the combs and brushes are a matching set, they are sold individually and so the sales mix is not 1:1. Follette Inc....
-
Oakland Retail Group begins the year with inventory of $52,000 and ends the year with inventory of $42,000. During the year, the company has four purchases for the following amounts. Purchase on...
-
Congress prevents loss recognition on sales and liquidating distributions of property contributed to the corporation with a built-in loss shortly before a liquidation. Identify the condition(s) that...
-
What are the molecular mechanisms underlying the establishment of embryonic axes during early development?
-
X Corporation has a value of $200,000,000 and has a capital structure comprised of 200,000,000 issued and outstanding shares of common voting stock, so that the common voting stock immediately before...
-
How do genetic mutations affect organogenesis and embryonic patterning?
-
Is the demand curve as perceived by an oligopolist likely to be more or less elastic for a price increase or a price decrease?
-
What are three disadvantages of using the direct write-off method?
-
Using approximate values, calculate the slope of the curve in Figure 2.60 to verify that the velocity at t = 30.0 s is approximately 0.24 m/s. Data given in Figure 2.60 Position (m) 25 20+ 15+ 10+ 5+...
-
How much energy is required to change a 40.0-g ice cube from ice at -10.0C to steam at 110C?
-
A 50.0-g copper calorimeter contains 250 g of water at 20.0C. How much steam must be condensed into the water if the final temperature of the system is to reach 50.0C?
-
A 3.00-g lead bullet at 30.0C is fired at a speed of 240 m/s into a large block of ice at 0C, in which it becomes embedded. What quantity of ice melts?
-
How do I use voice commands to control my computer with the project of making a video?
-
Dan Mullen is employed by a mail-order distributor and reconditions used desktop computers, broadband routers, and laser printers. Dan is paid $12 per hour, plus an extra $6 per hour for work in...
-
Consider two series Yt and Y2t: Y = IIY-1 +6 Or more explicitly as: Aye Aya Yit Elt + Y2t 2t in which = [1, 2]' is IID with E(e) = 0 and E(ee'): [ 0 0 a) Write the system in levels Answer: A-AU-N b)...
Study smarter with the SolutionInn App