A 2.0-kg silverware drawer does not slide readily. The owner gradually pulls with more and more force,
Question:
Step by Step Answer:
Since the drawer moves with the applied force of 90 N we assume th...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
-
Two horizontal forces act on a 2.0 kg chopping block that can slide over a frictionless kitchen counter, which lies in an xy plane. One force is F1 = (3.0N)i + (4.0N)i. Find the acceleration of the...
-
A 2.0 kg breadbox on a frictionless incline of angle = 40 is connected, by a cord that runs over a pulley, to a light spring of spring constant k = 120 N/m , as shown in Figure. The box is released...
-
A 2.0 kg lunchbox is sent sliding over a frictionless surface, in the positive direction of an x axis along the surface. Beginning at time t = 0, a steady wind pushes on the lunchbox in the negative...
-
Find the amplitude, period, and phase shift of function. Graph function. Show at least two periods. 2 3 - cos ( 6)
-
Consider the frequency demodulation scheme in Figure in which the incoming FM signal s (t) is passed through a delay line that produces a phase-shift of ?/2 radians at the carrier frequency ? c . The...
-
The balance sheet items of Mercer Company as of December 31, 2011, follow in random order. You are to prepare a balance sheet for the company, using a similar sequence for assets as illustrated in...
-
2-6. Qu es un anlisis de cartera de negocios ?
-
Table 11.3.2 shows the on-time performance of nine airlines, both for one month (May 2010) and for the preceding four (January to April 2010). These numbers represent percentages of flights that...
-
A favorable price variance and an unfavorable quantity variance will create a: An unfavorable spending variance. O A favorable spending variance. O Either a favorable or unfavorable spending variance
-
Larry Power started a new business in the name of Power Electrical on October 1, 2020. During October, a number of activities occurred and the following totals resulted at October 31, 2020 (shown in...
-
The coefficient of static friction between hard rubber and normal street pavement is about 0.90. On how steep a hill (maximum angle) can you leave a car parked?
-
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.15 and the push imparts an initial speed of 3.5 m/s?
-
In Problems 7182, discuss the validity of each statement. If the statement is true, explain why. If not, give a counterexample. Vx= |x|for all real numbers x
-
What's your favourite way to promote and build interpersonalwellness? How do you nurture your relationships? How do you build friendships? How do you show your loved ones that you care? Share your...
-
What is the best way to summary this formation? IMC Communication Objectives Increase from 0% to 75% of Millennials in the Dallas-Fort Worth area, ages 22 - 34, with a four-year college degree,...
-
Branding is very important to marketing, that is while most businesses focus on brands that attract customer's interest. Store brand is unique to a particular store compared to national brand . A...
-
Do you think that your score accurately reflects your global mindset? Why or why not? What, if anything, is missing from the assessment? How do you think that having a higher global mindset will help...
-
Healthcare is an ever-changing industry that requires healthcare organizations to align with those changes or risk being left behind. With the advances being made in technology, every corner seems to...
-
Which of the following is a deduction for adjusted gross income in 2016? a. Personal casualty losses b. Medical expenses c. Student loan interest d. Charitable contributions e. None of the above
-
You are thinking of investing in one of two companies. In one annual report, the auditors opinion states that the financial statements were prepared in accordance with generally accepted accounting...
-
Why is the use of a real-time network not recommended in machine control?
-
What is VRS?
-
What limitations occur in an RTK survey?
-
The star Mira is 1.2 times the mass of the Sun and about 10,000 times more luminous than the Sun. Would Mira fit into the table above? Why or why not?
-
Which of the following was one of the most valuable benefits a company received as a sponsor of NHL games?
-
Cinder Inc. is a Canadian-controlled private corporation based in your province. The company operates a wholesale business. The following information is provided for its year ended May 31, 2023: Net...
Study smarter with the SolutionInn App