Reference no: EM131010989
In this demonstration, the amount of force that it takes to overcome the force of static friction, and start an object moving, is compared with the weight of an object. Because the surface is parallel to the ground, the force pressing both surfaces together, is equal to the object's weight. The coefficient of static friction is shown to be directly proportional to the force pressing the objects together, for any area or surface type.
Please view the demonstration, and answer the following questions.
Things To Do
1. The coefficient of sliding friction, is the force required to overcome friction when the object is already moving. Do you think that coefficient is higher or lower than the force of static friction and why?
2. Is friction treated as a positive or negative force?
3. Is there anything like a frictionless surface?
The Angle of Repose
The Angle of Repose is the minimum angle required for an object to overcome the force of friction and begin sliding down hill under the force of gravity. In another sense, it is the maximum angle that a slope can be for unconsolidated material, before the force of gravity causes the material to slump.
In this demonstration, the Angle of Repose for a particular object and type of surface, is experimentally determined. After viewing the demonstration, please complete the Things To Do Questions.
Things To Do
1. Why is it necessary to do a vector resolution problem using the force of Static Friction, in order to theoretically determine the Angle of Repose?
2. What does a very low Angle of Repose tell you about the kind of surface at play?
3. What does it tell you about the Coefficient of Static Friction?
|
Amount of gift tax will she pay
: If the gift tax rate is 40% and she has never made a gift in excess of $10,000 before this, what amount of gift tax will she pay? What is their net tax savings percentage as a family unit if Sean sells the land?
|
|
Determine its product development practices
: Access the importance of technology in providing patients with clear and accessible information about health care organizations and the product (s) / service (s) that they provide.
|
|
Increase your withdrawals
: When you retire at 65 years old, you have $1 million in your saving account which earns 7% interest annually. You want to be able to increase your withdrawals by 3% each year to keep up with inflation. How much can you withdraw the first year if you ..
|
|
Balance sheet and income statement
: BBB Company's balance sheet and income statement follow: BBB COMPANY Income Statement For Year Ended December 31, 2011 Sales $38,000 Operating expenses:
|
|
Is there anything like a frictionless surface
: The Angle of Repose is the minimum angle required for an object to overcome the force of friction and begin sliding down hill under the force of gravity. In another sense, it is the maximum angle that a slope can be for unconsolidated material, b..
|
|
Review of wilkinson the seven laws of the learner
: You will submit a 1500-2250-word review of Wilkinson's The Seven Laws of the Learner. The review must be written in current Turabian format and include a summary, critique, and application in addition to a title page and bibliography
|
|
Describe the ethical issues in the field of tax accounting
: Describe the ethical issues in the field of tax accounting within a company.
|
|
Financial analysts forecast limited brands growth
: Financial analysts forecast Limited Brands (LTD) growth for the future to be 10.6 percent. LTD’s most recent dividend was $0.80. What is the fair present value of Limited Brands’s stock if the required rate of return is 14.9 percent?
|
|
Handle an ethical conflict
: What steps should a management accountant take if established written policies provide insufficient guidance on how to handle an ethical conflict?
|