Suppose we would like the landing speed of block 2 to be increased to 1.50 m/s. (a)
Question:
Suppose we would like the landing speed of block 2 to be increased to 1.50 m/s.
(a) Should the coefficient of kinetic friction between block 1 and the tabletop be increased or decreased?
(b) Find the required coefficient of kinetic friction for a landing speed of 1.50 m/s. Note that m1 = 2.40 kg, m2 = 1.80 kg, and d = 0.500 m.
Step by Step Answer:
The nonconservative work done by friction changes the me...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
-
Consider the river crossing problem in Example 3-11. Suppose we would like the boat to move directly across the river (in the positive x direction) with a speed of 5.0 m/s. What is the corresponding...
-
Suppose we would like the acceleration of the satellite to be at an angle of 25, and the only quantity we can change in the system is the magnitude of (vector)F 1 . (a) Should the magnitude of...
-
Humans lose consciousness if exposed to prolonged accelerations of more than about 7g. This is of concern to jet fighter pilots, who may experience centripetal accelerations of this magnitude when...
-
Mrs Anh Thuy is a 43 year old lady admitted following an incidence of blurred vision, numbness down the right side and a sharp pain in her head. A neighbour found her on the ground unable to move or...
-
Marginal Cash flows A coworker claims that looking at all this marginal this and incremental that is just a bunch of nonsense, saying, Listen, if our average revenue doesnt exceed our average cost,...
-
Complete the tournament sort of the list 22, 8, 14, 17, 3, 9, 27, 11. Show the labels of the vertices at each step. The tournament sort is a sorting algorithm that works by building an ordered binary...
-
Could an extend use case have an include use case? Explain.
-
1. Do you think a country the size of Iceland a Lilliputian is more or less sensitive to the potential impacts of global capital movements? 2. Many countries have used interest rate increases to...
-
On December 31, 2023, Berclair Incorporated had 400 million shares of common stock and 7 million shares of 9%, $100 par value cumulative preferred stock issued and outstanding. On March 1, 2024,...
-
Let W1 and W2 be subspaces of R2 Is it necessary W1 UW2 is subspace of R? Let W1 and W, be subspaces of V show that W1n W2 and W1+ W2 both are subspaces of V. Let Wi and W2 be subspaces of V show...
-
Suppose the block is released from rest with the spring compressed 5.00 cm. The mass of the block is 1.70 kg and the force constant of the spring is 955 N/m. (a) What is the speed of the block when...
-
Find the gravitational potential energy of an 88-kg person standing atop Mt. Everest at an altitude of 8848 m. Use sea level as the location for y = 0.
-
Determine whether each of the following variables would best be modeled as continuous or discrete: a. Number of girls in a family b. Height of a tree c. Commute time d. Concert attendance
-
Chris Smith - Owner and Senior Accountant B.Ec. (Accounting major), M.Tax (UNSW), FIPA Director Chris is a registered tax agent and an accountant who has been in public practice as an accountant...
-
A subgroup H of S, is called transitive if the standard action by H on {1,..., n} is transitive. Show that the transitive subgroups of S3 are A3 and S3.
-
1. The scores of the students in the final examination are normally distributed with a mean of 72 and a standard deviation of 8. a. Find the percentage of students who scored less than 60. b. Find...
-
How might a retrenchment strategy and a penetration strategy be linked together? What are some other logical combinations of strategies? How may a combination of strategies be related to vision?
-
What are Porters generic strategies? Choose 2 different industries and give examples of companies that exhibit each strategy. Which strategy/company do you believe has the best strategy for that...
-
At the beginning of 2020, Aristotle Company acquired a mine for $970,000. Of this amount, $100,000 was ascribed to the land value and the remaining portion to the minerals in the mine. Surveys...
-
The registrar of a college with a population of N = 4,000 full-time students is asked by the president to conduct a survey to measure satisfaction with the quality of life on campus. The following...
-
A parallel-plate capacitor has plates of area 0.12 m2 and a separation of 1.2 cm. A battery charges the plates to a potential difference of 120 V and is then disconnected. A dielectric slab of...
-
The chocolate crumb mystery this story begins with Problem. As part of the investigation of the biscuit factory explosion, the electric potentials of the workers were measured as they emptied sacks...
-
Figure shows capacitor 1 (C1 = 8.00F), capacitor 2 (C2 = 6.00F), and capacitor 3 (C3 = 8.00F) connected to a 12.0 V battery. When switch S is closed so as to connect uncharged capacitor 4 (C4 =...
-
exploration of the history of street art and its controversies of ppt/quicktime video.
-
Solve the following problems. Reduce answers to their lowest terms. Box your answers. 1 5 1.+ -= 4 12 2 2.- + 3 9 = 11 Convert improper fractions to mixed numbers. 2 11 3. + == 5 12 4 4 4. 12 7 5.35...
-
When average consumer income increased by 6%, BakeCo oven cleaner sales increased from 21,000 units to 22,500 units. Given this information,what is income elasticity for BakeCo oven cleaner ?
Study smarter with the SolutionInn App