One side of the roof of a building slopes up at 37.0. A student throws a Frisbee
Question:
Step by Step Answer:
We must consider separately the disk when it is in contac...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 carpenter on the roof of a building accidentally drops her hammer. As the hammer falls it passes two windows of equal height, as shown in FIGURE 2-39. (a) Is the increase in speed of the hammer as...
-
Does the fact that one side of the Moon always faces Earth mean that the Moon rotates about its axis (like a top) or that it doesn't rotate about its axis? Defend your answer.
-
The first two dark fringes on one side of the central maximum in a single-slit diffraction pattern are 1.0 mm apart. The wavelength of the light is 610 nm and the screen is 1.0 m from the slit. What...
-
An airplane has a mass of 5000 kg, a maximum thrust of 7000 N, and a rectangular wing with aspect ratio 6.0. It takes off at sea level with a 60 split flap as in Fig. 7.25. Assume all lift and drag...
-
Corporate income must be subtracted from national income to obtain personal income. How is it that personal income can be larger than national income?
-
Presented below are a number of independent situations. Instructions For each individual situation, determine the amount that should be reported as cash. If the item(s) is not reported as cash,...
-
When should you start controlling stakeholder engagement on a project? a. in the early phases b. in the middle phases c. in the latter phases d. none of the above; you cannot control stakeholder...
-
A chemical company manufactures three chemicals: A, B, and C. These chemicals are produced via two production processes: 1 and 2. Running process 1 for an hour costs $400 and yields 300 units of A,...
-
Homework: Chapter 5 Homework Score: 0 of 4 pts 2of completely HW Score: 0%, 0 of 20 pito E5B-31 (similar to) Qotion Help 0 humains the following in Martin Being a periode intory Explanations were...
-
Suppose you are assessing the merits of multiple designs of pillows based on durability, shape, and comfort. Use the table below to answer the following questions. You should set up and solve this...
-
A block weighing 75.0 N rests on a plane inclined at 25.0 to the horizontal. A force F is applied to the object at 40.0 to the horizontal, pushing it upward on the plane. The coefficients of static...
-
An inventive child named Pat wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley (Fig. P5.51), Pat pulls on the...
-
What is the definition of independence as it pertains to an internal audit function? What is the definition of objectivity as it pertains to individual internal auditors?
-
Which topics do you see as being most relevant to your current job or the job you will seek to obtain once you have earned your degree? How so ? In which ways has this course Commercial Law changed...
-
Directions Answer the following reflective questions: There do exist examples of business organizations following principles of behavior that are not entirely self-serving, but rather, are pursuing...
-
10 Count scallops cost $12.97 per pound. How much do they cost for each? A Wagyu Beef New York Strip costs $14 per pound and weighs 15 pounds. The useable yield is 12.5 pounds. How many 12 ounce...
-
How do coordinating agencies differ in a crisis, disaster, and an emergency ?Explain
-
How do we manage and respond to customer feedback and reviews to maintain a positive brand reputation? Explain with the help of examples.
-
Identify the types of selection errors and biases managers must overcome when interviewing job applicants. (pp. 137-140)
-
Give codons for the following amino acids: (a) Th (b) Asp (c) Thr
-
What is spooling? Do you think that advanced personal computers will have spooling as a standard feature in the future?
-
44. Dryer Companys policy is to keep 25% of the next month's sales in ending inventory. If Dryer meets its ending inventory policy at the end of April and sales are expected to be 24,000 units in May...
-
What general conclusions can you draw about your companys liquidity, solvency and productivity based on your ratio calculations. Working Capital 2017 = $9,994 M 2016 = $10,673 M Current Ratio 2017 =...
-
Tami Tyler opened Tami's Creations, Incorporated, a small manufacturing company, at the beginning of the year. Getting the company through its first quarter of operations placed a considerable strain...
Study smarter with the SolutionInn App