In Figure, block 1 of mass m 1 = 2.0kg and block 2 of mass m 2
Question:
In Figure, block 1 of mass m1= 2.0kg and block 2 of mass m2= 3.0kg are connected by a string of negligible mass and are initially held in place. Block 2 is one a frictionless surface tilted at θ = 30o. The coefficient of kinetic friction between block 1 and the horizontal surface is 0.25. The pulley has negligible mass and friction. Once they are released, the blocks move. What then is the tension in the string?
my Ө Ө
Step by Step Answer:
Note that since no static friction coefficient is mentioned we assume f is not relevant to this ...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, block 1 of mass m1 = 6.6 kg is at rest on a long frictionless table that is up against a wall. Block 2 of mass m2 is placed between block 1 and the wall and sent sliding to the left,...
-
Speed amplifier. In Figure block 1 of mass m1 slides along an x axis on a frictionless floor with a speed of v1i: = 4.00 m/s. Then it undergoes a one-dimensional elastic collision with stationary...
-
Speed amplifier. In Figure block 1 of mass m1 slides along an x axis on a frictionless floor at speed 4.00 m/s. Then it undergoes a one-dimensional elastic collision with stationary block 2 of mass...
-
How can we use these theories to analyze factors which influence the longevity and adaptability of these organizations in changing landscapes?
-
Ben has just purchased a long-term government bond and expects to make a 7% return. Donna has just purchased a stock in a new start-up company but expects to make a 20% return. Why is Donna expecting...
-
A U.S. companys foreign subsidiary had these amounts in foreign currency units (FCU) in 2011: Cost of goods sold . . . . . . . . . . . . . . . FCU 10,000,000 Ending inventory . . . . . . . . . . . ....
-
The balance sheet of Tatters Ltd on 31 December 2008 was as follows: The dividend on the preference shares is 12,000 in arrears. A scheme of reconstruction was accepted by all parties and was...
-
(Conversion of Bonds) On January 1, 2009, Trillini Corporation issued $3,000,000 of 10-year, 8% convertible debentures at 102. Interest is to be paid semiannually on June 30 and December 31. Each...
-
finance question 8. You have been asked to value "The Skyfall," a privately owned restaurant that generated $ 150,000 in after-tax operating income on SE 1 million of revenues last year and is exp...
-
ADA Pharmaceutical Company produces three drugs: Diomycin, Homycin, and Addolin belonging to the analgesic (pain-killer) family of medication. Since its inception four years ago, ADA has used a...
-
In Figure the coefficient of kinetic friction between the block and inclined plane is 0.20, and angle ? is 60o. What are the(a) Magnitude a and(b) Direction (up or down the plane) of the block's...
-
A block of mass m 1 = 4.0 kg is put on top of a block of mass m b = 5.0 kg. To cause the top block to slip on the bottom one while the bottom one is held fixed, a horizontal force of at least 12 N...
-
Green Thumb, a manufacturer of lawn care equipment, has introduced a new product. Each unit costs $250 to manufacture, and the introductory price is $300. At this price, the anticipated demand is...
-
Solve for x. -7+ log, (x+3)=-5
-
What are the underlying socio-political mechanisms that drive large-scale systemic transformations in societies, and how do these mechanisms interact with existing cultural norms and institutional...
-
(1) Show the effect of the increase of M by the government using graphs. (Be careful about intersection points in the graphs.) (2) Using total differentiation, calculate the first (only LM), second...
-
Part 1 Make a list of distribution channels you know. Define the most common distribution channels. Find three multinational companies that use each of the distribution channels you chose. Design...
-
A regulation basketball has a 33 cm di- ameter and may be approximated as a thin spherical shell. How long will it take a basketball starting from rest to roll without slipping 4.9 m down an incline...
-
The length of the belt in the case of a cross-belt drive is given in terms of centre distance between pulleys \((C)\), diameters of the pulleys \(D\) and \(\mathrm{d}\) as (a) \(2...
-
The following processes constitute the air-standard Diesel cycle: 12: isentropic compression,23: constant-volume energy addition (T and P increase),34: constant-pressure energy addition (v...
-
Some hummingbirds beat their wings more than 50 times per second. A scientist is measuring the time it takes for a hummingbird to beat its wings once. Which fundamental unit should the scientist use...
-
In a double-slit experiment, the fourth-order maximum for a wavelength of 450 nm occurs at an angle of = 90. (a) What range of wavelengths in the visible range (400 nm to 700 nm) are not present in...
-
In the double-slit experiment of Fig. 35-10, the electric fields of the waves arriving at point P are given by Where time t is in seconds (a) What is the amplitude of the resultant electric field at...
-
In the double-slit experiment of Fig. 35-10, the viewing screen is at distance D = 4.00 m, point P lies at distance y = 20.5 cm from the center of the pattern, the slit separation d is 4.50 mm, and...
-
Joaquin is using the survey method of a job analysis for a barista position at Peet's Coffee. Ideally Joaquin should give the survey to Group of answer choices a secret shopper a customer a position...
-
In 2 0 1 9 Illinois passes a law which will require inspection of any public places to determine if the paint used on the walls contains lead. Illinois will charge the paint manufacturer of the paint...
-
A job interview that involves one job applicant and two or more interviewers is called Group of answer choices an applied interview a multiple group setting interview structured interview a panel...
Study smarter with the SolutionInn App