#5 which is the correct graph and why aren’t other correct? sandpaper.5. Examine the four following graphs of frictional force vs. normal force.III.ELKKNormal (N)I.II.Normal (N)Normal (N)Normal (N)a. Identify the graph displaying the correct relationship between the force of friction and the normal force.b. For those graphs not selected, explain why they are incorrect.IV.6. Design a set of experiments to determine the effects of surface area, mass, and surface type on the forces ofkinetic and static friction. Write a detailed, step-by-step procedure to determine the effect of each physicalfactor.7. Review additional variables that may affect the reproducibility or accuracy of the experiment and how thesevariables will be controlled.8. Carry out the experiment and record results in an appropriate data table.Analyze the ResultsCalculate the coefficients of static and kinetic friction for each variable tested: surface area, mass and surface type.Display collected data and calculated values in appropriate data tables. Present the mass added data in graphical formand perform appropriate analysis on the data set. Include a paragraph conculsion summarizing the data and analysesor each variable.Eudent Worksheet PDF84_Student1.pdf72b4f6c22ad443980ec653b5b4aacc9)(/globalassets/flinn-scientific/all-publication-images-and-pdfs/13784_student1.pdf?gaidocos

Frictional force which acts opposite to the direction of motion. Frictional force depends on normal…

Answered: 5. Examine the four following graphs of…

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Physics

5. Examine the four following graphs of frictional force vs. normal force. II. III. H I. (N 4) IV.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter5: Further Applications Of Newton's Laws: Friction, Drag, And Elasticity

Section: Chapter Questions

Problem 3PE: (a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her...

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(a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her mass on that knee? (b) During strenuous exercise it is possible to exert forces to the joints that are easily ten times greater than the weight being supported. What is the maximum force of friction under such conditions? The frictional forces in joints are relatively small in all circumstances except when the joints deteriorate, such as from injury or arthritis. Increased frictional forces can cause further damage and pain.
Give three important “laws” that characterize frictional interactions between two Solids sliding past one another.
Commercial airplanes are sometimes pushed out of the passenger loading area by a tractor. (a) An 1800-kg tractor exerts a force of 1.75104 N backward on the pavement, and the system experiences forces resisting motion that total 2400 N. If the acceleration is 0. 150 m/s2, what is the mass of the airplane? (b) Calculate the force exerted by the tractor on the airplane, assuming 2200 N of the friction is experienced by the airplane. (c) Draw two sketches showing the systems of interest used to solve each part, including the free-body diagrams for each.
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. The mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20 m/s2 backward. (a) What is the force of friction between the losing player's feet and the grass? (b) What force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) Draw a sketch of the situation showing the system of interest used to solve each part. For this situation, draw a free-body diagram and write the net force equation.
1. Why does static friction has a higher value than the kinetic friction? Explain this comprehensively and please, do not just copy from somewhere.
1. A drag-racing car accelerates forward because of the forceexerted on it by the road. Why, then, does it need an engine?Draw and Explain.
1. You attach a force scale to a toboggan resting in the snow. a) What is the minimum value of static frictional force and under what conditionswould you observe that value on your force scale? b) What two (equal in magnitude and opposite in direction) forces is the scalemeasuring when you start to pull on the toboggan but it remains stationary? Bespecific. c) What happens to the number on the force scale as you start to pull on thetoboggan but it remains stationary? Explain. d) What happens to the toboggan if your applied force exceeds the maximum staticfrictional force? e) What happens to the number on the force scale in the moment the tobogganstarts to move? Explain. f) What two (equal in magnitude and opposite in direction) forces is the scalemeasuring when you pull on the toboggan and it moves at a constant speed. Bespecific. 2. The coefficient of static friction between a toboggan and dry snow is 0.50. If thetoboggan’s mass is 9.75 kg, what is the minimum applied force required…
A man exerts a horizontal force of 131 N on a crate with a mass of 36.2 kg. (a) If the crate doesn't move, what's the magnitude of the static friction force (in N)? Make a free-body diagram and apply the x-component of Newton's second law. N (b) What is the minimum possible value of the coefficient of static friction between the crate and the floor? (Assume the crate remains stationary.) Apply the relationship between static friction and the normal force.
10. A 4.5 kg block is pulled across a horizontal surface that has a coefficient of kinetic friction of 0.40. a). Draw a free-body diagram that includes the vertical and horizontal forces. b) What is the normal force? c) What is the force of friction exerted by the surface on the block? d. If the block is pulled by a 25 N force, what is the net force acting on the block? e). What is the acceleration of the block? Be sure to draw
1) A 75-kg crane is suspended through a frictionless pulley to a massless pole at two points, each point is an end of two cables, and the left cable has an angle to the pole of 25 degrees while that of the right angle has an angle of 15 degrees. Each cable passes over a frictionless pulley. What is the tension force of the left cable? What is the tension force of the right cable? Draw a free-body diagram of the problem. Identify the known information. Identify the unknown information. Write the equations to solve for the unknown information. Calculate. Encircle your final answer with the appropriate units.
3) What is the dierent between static and kinetic friction? b) Why does the static friction involve an inequality while kinetic friction involves an equation? c) Does kinetic friction depend on the normal force?
A woman at an airport is towing her 23.0-kg suitcase at constant speed by pulling on a strap at an angle θ above the horizontal (see figure). She pulls on the strap with a 35.0-N force, and the friction force on the suitcase is 20.0 N. (a) What angle does the strap make with the horizontal? (b) What is the magnitude of the normal force that the ground exerts on the suitcase?