A 5.00-kg block is placed on top of a 12.0-kg block that rests on a frictionless table.
Question:
(a) The more massive block and
(b) The less massive block?
Step by Step Answer:
a The static frictional force is responsible for acceleratin...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 vertical spring (spring constant = 112 N/m) is mounted on the floor. A 0.400-kg block is placed on top of the spring and pushed down to start it oscillating in simple harmonic motion. The block is...
-
A vertical ideal spring is mounted on the floor and has a spring constant of 170 N/m. A 0.64-kg block is placed on the spring in two different ways. (a) In one case, the block is placed on the spring...
-
A 2.50-kg block is placed on a rough surface inclined at 30o. The block is propelled and launched at a speed of down the incline and comes to rest after sliding 1.10 m. (a) Draw the free-body diagram...
-
The following report was prepared for evaluating the performance of the plant manager of Miss-Take Inc. Evaluate and correct thisreport. Miss-Take Inc. Manufacturing Costs For the Quarter Ended March...
-
The bookkeeper for Joes Hardware Co. records all revenue and expense items in nominal accounts during the period. The following balances, among others, are listed on the trial balance at the end of...
-
The following information related to accounting for inventory was taken from the 2019 annual report of Costco Wholesale Corporation. Merchandise inventories consist of the following at the end of...
-
Harry wants to contribute either \($6,500\) (BT\($)\) to a traditional deductible IRA or \($6,500\) (AT\($)\) to a Roth IRA. His current tax rate is 30% for ordinary income and 15% for capital gains....
-
Selecting an appropriate cost driver (What is the base?) Letterman Research Institute has three departments: biology, chemistry, and physics. The institutes controller wants to estimate the cost of...
-
Find magnitude of two forces such that if they act at right angle, their resultant is 90 N and when they act at 60 their resultant is 117 N?
-
A machine part in the form a parallelopiped is deformed into the shape indicated by the dashed straight lines (small displacements). The displacements are given by the following relations: u= C1xyz,...
-
A small sphere is hung by a string from the ceiling of a van. When the van is stationary, the sphere hangs vertically. However, when the van accelerates, the sphere swings backward so that the string...
-
A person with a black belt in karate has a fist that has a mass of 0.70 kg. Starting from rest, this fist attains a velocity of 8.0 m/s in 0.15 s. What is the magnitude of the average net force...
-
Find the transfer function \(T_{\mathrm{V}}(s)=V_{2}(s) / V_{1}(s\) ) of the circuit in Figure P12-11. (a) Find the dc gain, infinite frequency gain, and cutoff frequency. Identify the type of gain...
-
Refer the published Balance Sheet of any listed Company. Identify its sources of funds. Explain any 4 in brief. (Balance Sheet need not to be copied or pasted in the answer) Compare and rank the...
-
Water from the ocean has 3.5% salt, and water from the Dead Sea has 33.7% salt. If someone has 10 gallons of ocean water, how many gallons of water from the Dead Sea (measured to the nearest...
-
Every organization has to manage its finances. The overall objectives of an organization cannot be achieved in the absence of financial management . Many organizations fail in their objectives...
-
Several countries in the European Economic Union (EU) have experienced difficulty paying their debts over the past decade. Greece almost defaulted (didn't make its monthly payments) during 2010 and...
-
What are the limitation of the International Fama-French Three Factor Model in emerging markets? E.g. why is it unable to explain the average returns? Also, suggest some readings for empirical...
-
What property or properties of gases can you point to that support the assumption that most of the volume in a gas is empty space?
-
A sample statistic will not change from sample to sample. Determine whether the statement is true or false. If it is false, rewrite it as a true statement.
-
(a) An 11.0kg salami is supported by a cord that runs to a spring scale, which is supported by a cord hung from the ceiling (Figure a). What is the reading on the scale, which is marked in weight...
-
A block with a weight of 3.0 N is at rest on a horizontal surface. A 1.0 N upward force is applied to the block by means of an attached vertical string. What are the (a) Magnitude and (b) Direction...
-
Figure shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 98 N on the wall to which it is...
-
Any global marketing strategy, that is in the words of Peter Drucker (2003)" any commitment of present resources to future expectations", has to start with taking stock of the changes in the global...
-
Combine the following and reduce to lowest terms where appropriate. a+4 2a+3 1. 5y 5y 2. 4a x - a y 47 -IX 3. + 27 - 3 MIN y z II 3X 5Y 4. 16A2B 24AB 7x 4 5. 10ab 10ab
-
8. The graph below is a model graph for one-way bus fare for different locations A, B,C, and D. Find the four possible Hamilton circuit. the sum of the weight of the edge, and the total fare of each...
Study smarter with the SolutionInn App