How much power must you exert to horizontally drag a 25.0-kg table 10.0 m across a brick
Question:
Step by Step Answer:
The dragging force is equa...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
-
The coefficient of kinetic friction between the 2.0 kg block in FIGURE P7.38 and the table is 0.30. What is the acceleration of the 2.0 kg block? 2.0 kg 3.0 kg 1.0 kg FIGURE P7.38
-
The coefficient of kinetic friction between the tires of your car and the roadway is m. (a) If your initial speed is v and you lock your tires during braking, how far do you skid? Give your answer in...
-
The coefficient of kinetic friction between the surface and the larger block is 0.20, and the coefficient of kinetic friction between the surface and the smaller block is 0.30. If F = 14 N and M =...
-
Table P-23 contains Southwest Airlines' quarterly income before extraordinary items ($MM) for the years 1988-1999. a. Plot the income data as a time series and describe any patterns that exist. b. Is...
-
Ajax Inc. was formed on April 25 and elected a calendar year for tax purposes. Ajax paid $11,200 to the attorney who drew up the articles of incorporation and $5,100 to the CPA who advised the...
-
What types of deals are most appropriate for VC and why?
-
Describe briefly the key features of the Joint Monitoring Unit's monitoring process.
-
1. Assume Jennie Lin is a CPA. Evaluate her actions with respect to the rules of conduct of the AICPA. 2. Jennie believes that her actions were proper because taking the money from the church and...
-
What is the product that is being made and why the company manufactures it. What is the value chain activities that this product would go through from start to finish? What are three costs that...
-
A2 percent increase in the price of milk causes a 4 percent reduction in the quantity demanded of chocolate syrup. What is the cross-price elasticity of demand for chocolate syrup with respect to the...
-
A father pushes horizontally on his daughters sled to move it up a snowy incline, as illustrated in Fig. 5.27b. If the sled moves up the hill with a constant velocity, how much work is done by the...
-
A 3250-kg aircraft takes 12.5 min to achieve its cruising altitude of 10.0 km and cruising speed of 850 km/h. If the planes engines deliver, on average, 1500 hp during this time, what is the...
-
A truck is traveling along the horizontal circular curve of radius r with a constant speed v. Determine the angular rate of rotation ' of the radial line r and the magnitude of the trucks...
-
When people think of innovation, the first that comes into their mind is product innovation.* A. TRUE B. FALSE Innovation is the process by which entrepreneurs convert opportunities into marketable...
-
Initial reaction is based on pure intuitive sense.* A. TRUE B. FALSE Concepts embodying new art and entertainment are easy to test.* A. TRUE B. FALSE
-
Seagate Limited is a steel manufacturing company which have a turnover of 543 Million Rupees. Recently, Mr. Ramanujan joined the Seagate Limited as a CEO. Mr. Ramanujan is a technically-educated CEO...
-
Entrepreneurs are always looking for unique opportunities to fill needs or wants.* A. TRUE B. FALSE The easiest step in the creative endeavor is the implementation and evaluation phase.* A. TRUE B....
-
Big Red Trucking is considering the acquisition of MidWest Transportation. MidWest's asking price of $ 5 3 5 million appears to be non - negotiable. Big Red plans to value MidWest's cash flows using...
-
If disk D has a constant angular velocity D , determine the angular velocity of disk A at the instant , using the method of instantaneous center of zero velocity. Given: r = 0.5 ft 8 = 60 deg r1 =...
-
1A. If the researcher is concerned about the number of variables, the nature of the analysis, and completion rates, then, he/she is at which stage of the sampling design process (Figure 11.1 in the...
-
Two vectors have lengths A = |A(vector)| = 12 m and B - |B(vector)| - 17 m, but their directions are unknown. (a) What are the maximum and minimum possible values of A(vector) + B(vector)? (b) What...
-
If Saturn could fit in a bathtub, would it float? Use the planetary data in Appendix A to calculate the density (mass/volume) of Earth, Mars, Jupiter, and Saturn. What are the differences? Can you...
-
A person stretches a rope of length 55 m between the top of a building to the base of a tree 25 m away (Fig. P1.71). How tall is the building? Figure P1.71 ? -Rope +25 m|
-
Bronchial alveolar lavage and four endobronchial biopsies were performed and submitted to the insurance carrier as follows: 31625 x 4 units, 31624-51. Is this claim coded appropriately?
-
What goals are used to measure labor and management partnerships?
-
1. A Supervisor email you a question. 2. Potential client comes to your office. He has $40000 in wages on W-2. He also listed $30000 of charitable contributions, mostly clothing, on a single piece of...
Study smarter with the SolutionInn App