A 2.50-kg block is placed on a rough surface inclined at 30o. The block is propelled and
Question:
(a) Draw the free-body diagram of the block while it is sliding. Also indicate your coordinate system axes.
(b) Starting with Newton’s second law applied along both axes of your coordinate system, use your free-body diagram to generate two equations.
(c) Solve these equations for the coefficient of kinetic friction between the block and the incline surface.
Step by Step Answer:
a Since the block is moving downward on the incline but slowing down ...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 Classical Dynamics Of Particles questions
-
A 50-kg block is placed on an inclined plane whose angle with the horizontal is 25. The viscous friction coefficient between the block and the plane is c = 6 N s/m. (a) Derive the equation of motion,...
-
1.) Draw a free body diagram for a skydiver at some arbitrary time after leaving a plane. Write the equation of motion in the y-direction. 2.) solve your equation of motion for terminal velocity....
-
A 5.0-kg wooden block is placed on an adjustable wooden inclined plane. (a) What is the angle of incline above which the block will start to slide down the plane? (b) At what angle of incline will...
-
Bruceton Farms Equipment Company had goodwill valued at $80 million on its balance sheet at year-end. A review of the goodwill by the company's CFO indicated that the goodwill was impaired and was...
-
CC Company exchanged a depreciable asset with a $17,000 initial cost and a $10,000 adjusted basis for a new asset priced at $16,000. a. Assuming that the assets do not qualify as like-kind property,...
-
Explain the entries for purchases under a perpetual inventory system. LO6
-
What are the stages in the buying process?
-
The following information relates to Hudson City for its scal year ended December 31, 2014. On January 31, 2014, the city purchased as an investment for its debt service fund a fteen-year, 6...
-
\\\\table[[JS =28% ,US income tax rate],[ =40% ,Foreign income tax rate],[ 0=1.3000($)/(\\\\epsi )lon ,Spot exchange rate],[ t_(W)=10% ,Withholding Tax on interest paid to non-US creditors],[ %...
-
A month has elapsed since Precision Computer Centres year-end. Tony Freedman will use four specialized journals for recording business transactions in the month of Septemberyou will find two in...
-
A hockey puck impacts a goalies plastic mask horizontally at and rebounds horizontally off the mask at 47 mi/h. If the puck has a mass of 170 g and it is in contact with the mask for 25 ms, (a) What...
-
A fish weighing 25 lb is caught and hauled onto the boat. (a) Compare the tension in the fishing line when the fish is brought up vertically at a constant speed to the tension when the fish is held...
-
When should single quotation marks be used in a WHERE clause?
-
Your task is to check the internet and the?Common Vulnerabilities and Exposures (CVE) List?for networked IoT or?IoMT?devices with publicly known problems identified in the past six months.?? Select...
-
The first quarter tax return needs to be filed for Prevosti Farms and Sugarhouse by April 15, 2021. For the taxes, assume the second February payroll amounts were duplicated for the March 5 and March...
-
ABC Boating had a large fire that destroyed many of their boats ready to go to market. ABC decided to lay off a large number of employees rather than continue to pay them. The wages that this group...
-
HOW BEER IS MADE The beer-making process is an art. It takes time, patience and quite a bit of experimentation to find that perfect flavour. Once you have found the right mix, you can replicate it,...
-
Justine, an underwriter at NewWorld Insurance is working with her company's premium auditing department. Which one of the following is true regarding this collaboration? Available answer options...
-
The hard filler material used in brazing is: (a) Solder (c) Spelter (b) Flux (d) Electrode
-
In the series connection below, what are the respective power consumptions of R, R2, and R3? R R www 4 V=6V P1-3 W; P2=3W; and P3= 3 W OP10.5 W; P2-1 W; and P3= 1.5 W P1=1.5 W; P2=1 W; and P3= 0.5 W...
-
Explain why a company might choose not to claim CCA when it reports (a) accounting income and (b) an accounting loss.
-
The weight of passengers on a roller coaster increases by 50% as the car goes through a dip with a 30 m radius of curvature. What is the cars speed at the bottom of the dip?
-
A car drives over the top of a hill that has a radius of 50 m. What maximum speed can the car have at the top without flying off the road?
-
A 5.0 g coin is placed 15 cm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of s = 0.80 and k = 0.50. The turntable very slowly...
-
business law A partner may actively compete with the partnership True False
-
A company provided the following data: Selling price per unit $80 Variable cost per unit $45 Total fixed costs $490,000 How many units must be sold to earn a profit of $122,500?
-
Suppose a 10-year, 10%, semiannual coupon bond with a par value of $1,000 is currently selling for $1,365.20, producing a nominal yield to maturity of 7.5%. However, it can be called after 4 years...
Study smarter with the SolutionInn App