FIGURE 8-45 shows a 1.75-kg block at rest on a ramp of height h. When the block
Question:
FIGURE 8-45 shows a 1.75-kg block at rest on a ramp of height h. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 10.0 cm that has a coefficient of kinetic friction μk = 0.640. Find h such that the block's speed after crossing the rough patch is 3.50 m/s.
Rough patch 10.0 cm
Step by Step Answer:
Use Equation 89 to relate the nonconservative work of friction on the entire ...View the full answer
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
-
A 5.20 g bullet moving at 672 m/s strikes a700 g wooden block at rest on a frictionless surface. The bullet emerges, traveling in the same direction with its speed reduced to 428 m/s. (a) What is the...
-
A 5.0-g bullet with a speed of is fired horizontally into a 0.75-kg wooden block at rest on a table. If the block containing the bullet slides a distance of 0.20 m before coming to rest, (a) What is...
-
A 5.0-kg block at rest on a frictionless surface is acted on by forces F1 = 5.5 and F2 = 3.5 N as illustrated in Fig. 4.33. What additional force will keep the block at rest? r2 370
-
Activity-based costing systems should be used instead of traditional costing systems if ________. A. indirect production costs are a large percentage of production costs B. different products consume...
-
Scenario Analysis Rollo Transmissions, Inc., has the following estimates for its new gear assembly project: price = $1,600 per unit; variable costs = $180 per unit; fixed costs = $5.5 million;...
-
When can the centerlines of the streets in a city be painted without traveling a street more than once? (Assume that all the streets are two-way streets.)
-
How does encapsulation protect business rules from unauthorized access and manipulation?
-
One of Sure-Bet Sherbets best-selling products is raspberry sherbet, which is manufactured in 10-gallon batches. Each batch requires six quarts of raspberries. The raspberries are sorted by hand...
-
make 1 paragraph in the abstract below, with the journal name Optimizing the thermal management system of PCM fin-structured Li-ion batteries under mechanical vibration conditions: A comparative...
-
It is early April 2021 and you, CPA, work in a mid-sized accounting firm in Regina, Saskatchewan. While you normally work on audits, you have requested to participate in the personal tax pool this...
-
(a) A block of mass m slides from rest on a frictionless loop-the-loop track, as shown in FIGURE 8-44. What is the minimum release height, h, required for the block to maintain contact with the track...
-
In FIGURE 8-46 a 1.2-kg block is held at rest against a spring with a force constant k = 730 N/m. Initially, the spring is compressed a distance d. When the block is released, it slides across a...
-
(a) What is a transformation? (b) Why do we transform data?
-
Perkins Western Boot Emporium currently owns four warehouses in Houston, Seattle, Minneapolis and San Diego to store its boots before shipping them out to various retail customers across the western...
-
Your grandfather put $100 under his mattress 50 years ago. If he had instead invested it in a bank account paying 3.5% interest compounded yearly (roughly the average U.S. rate of inflation during...
-
a) Explain CAPM model with the help of SML and CML. b) What are the different types of risk (define each) , which risk is the most relevant one? Explain the answer with the help of a characteristic...
-
Definition of Open strategy Definition of Close strategy Comparison between open strategy and close strategy Examples of companies using Open strategy Implementation of open strategy Evaluation...
-
You deposit $1000 in a very good bank that is willing to give you interest, with the restriction that the money not be removed for 3 years. They stipulate that the interest compounding is ANNUAL. The...
-
On March 10, 2022, Lost World Company sells equipment that it purchased for $192,000 on August 20, 2015. It was originally estimated that the equipment would have a life of 12 years and a salvage...
-
QUESTION 2 The CEO of Farisha Hijab Sdn Bhd insisted on further investigation to be carried out that he also required Mr Muaz to conduct the analysis of variance for the material and labour of the...
-
Capacitor 3 in Figure is a variable capacitor (its capacitance C3 can be varied). Figure gives the electric potential V1 across capacitor 1 versus C3. The horizontal scale is set by C3s = 12.0F....
-
A 2.0F capacitor and a 4.0F capacitor are connected in parallel across a 300 V potential difference. Calculate the total energy stored in the capacitors.
-
A parallel-plate air-filled capacitor having area 40 cm2 and plate spacing 1.0 mm is charged to a potential difference of 600 V. Find (a) The capacitance, (b) The magnitude of the charge on each...
-
One of the two alternative long term debt or common stock will move Central Furniture Company to a more optimum capital structure. 1.what criteria are used to judge optimum capital structure?
-
Anna has a balance of $5,000 in her VISA account which grows at a nominal interest rate of 19.99% compounded daily. To pay off this balance, she makes monthly payments to VISA, with her first payment...
-
Joe works at a major pharmaceutical research and development company and has been tasked with writing his organization's data retention policy. As part of its legal requirements, the organization...
Study smarter with the SolutionInn App