Which statement is true about the coefficientof kinetic friction? Select one: a. It has units of N b. None of these is true c. It is in the direction of the normal force d. It is in the direction of frictional force
Q: 1. What are the two types of friction? 1. Sliding and static 2. Static and moving 3. Rest and…
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Q: A sled of mass 50 kg is pulled along snow- covered, flat ground. The static friction coeffi- cient…
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Q: 1) Three blocks A, B and C are connected by two ropes with tensions T, and T,. Blocks A and B weigh…
A: The system is moving with constant velocity. So, acceleration of the system will be zero because…
Q: 1. The coefficient of static friction between a book and a desk is 0.35 and the coefficient of…
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Q: 1. The figure below represents a cart viewed from above being pulled by two children and…
A: F1→=8 N, 30° above horizontalF2→=10 N, 45° below horizontalf→ = -6 N, along horizontal Net force…
Q: A 100-N object sits on a rough floor and is being acted on by 150-N force that is directed 30° above…
A: Weight of the object is 100N Force acting is 150N at 30° above the horizontal us = 0.5 , uk= 0.25
Q: 5. For the situation, shown in the figure, 10 kR (a) Draw the free-body diagram of 10-kg box (b)…
A: Given: The mass of the object is 10 kg. The angle of the inclination is 30o. Part (a): The free-body…
Q: 3. Which of the following would change the coefficient of static friction? A. Changing one or both…
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Q: 4. Illustrate a free-body diagram depicting both the direction of motion and friction.
A: We want to make a F.B.D. of a moving body on a frictional track
Q: 1. A 23kg box rests on a horizontal surface. What is the minimum horizontal force that is required…
A: Given : m=23 kg f=0.34 We have to find the minimum force required to make the box slide.
Q: A box full of books rests on a wooden floor. The normal forcethe floor exerts on the box is 238 N.…
A: (a) condition for coefficient of static friction fs>F1μsN>F1μs>F1N=126 N238 N=0.529
Q: Problem 9: A book is resting on a horizontal tabletop. The book is stationary and there are no…
A: Friction force is directly proportional to the normal reaction. Normal reaction can be found out by…
Q: 5. What is the coefficient of kinetic friction for rubber on dry concrete? How much frictional force…
A: Since you have asked multiple questions we will solve first question for you.please post remaining…
Q: A 35.0kg box rests on a horizontal surface with coefficient of static friction of 0.270 and a…
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Q: How does the value of the coefficient of static friction affect the frictional force? (What happens…
A: CO-EFFICIENT OF FRICTION The "friction coefficient" is defined as the ratio of the maximum static…
Q: 1. Which of these statements is TRUE about smooth surfaces and friction? A. Smooth surfaces will…
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Q: Ross and Rachel are fighting if they were on a break. Ross is trying to get his stuff weighing 150N…
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Q: Problem 9: A book is resting on a horizontal tabletop. The book is stationary and there are no…
A: Solution: Given: A book is resting on horizontal surface. Book is stationary and no external force…
Q: If a 30 kg child pulls a 10 kg box with 10 Newton force across the floor. The kinetic friction…
A: Calculate the normal force on the block. N = mg = 10*10 = 100 N Calculate the friction force…
Q: A leg is suspended in a traction system, as shown below. (a) Which pulley in the figure is used to…
A: Given data: The tension in the rope is T The weight is w = mg Step 1: The pulley number 5 is used to…
Q: As shown in Figure 1, a force of 300N pushes on a 35 kg box. Starting from rest, the box achieves a…
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Q: Part A) What is the force of friction on the box which is staying at rest on the incline below?…
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Q: If the 80 N horizontal force is applied to a 20 kg crate on a rough, level surface, the crate…
A: Force, F = 80 N mass, m = 20 kg acceleration, a = 1.2 m/s2
Q: fisherman is fishing from a bridge and is using a "65-N test line." In other words, the line will…
A: Let w =weight of fish = m×g Also , F = 65N a) At constant speed, acceleration = a= 0 So,…
Q: #2. Block B in Figure rests on a surface for which the static and kinetic coefficients of friction…
A: 2) mass of block B = 20 kg mass of block A = m Tension in the rope connected to block A = T Tension…
Q: 1. The figure below represents a cart viewed from above being pulled by two children and…
A: Given : F1=8N F2=10N f=6N Refer to the figure below :
Q: a 100 kg baseball player slides into second base the coefficient of kinetic friction between the…
A: Given: The mass of the baseball player is m=100 kg, The coefficient of kinetic friction between the…
Q: If the coefficient of kinetic friction between an object with mass M = 3.00 kg and a flat surface is…
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Q: PROBLEM A sled is tied to a tree on a frictionless, snow-covered hill, as shown in Figure 4.15a. If…
A: Given, Weight of sled , W = 77 N From figure and Free Body diagram, From newton's second laws of…
Q: he force diagram below shows a box accelerating to the right on a horizontal surface of negligible…
A: Free body diagram
Q: A 75.0Kg person stands on a scale that reads 500 Newton's. The person is pulling on a rope that is…
A: Draw the free body diagram of the person.
Q: A horizontal force of 87.2 N is applied to a 60.5 kg crate on a rough, level surface. If the crate…
A: The free-body diagram
Q: A 2.50 kg mass is initially at rest on a 38 degree incline. An applied force of 36 N directed up the…
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Q: 5. Which of these statements is NOT true about the friction force? A. Friction force depends on the…
A: Frictional force is a resistant force when a body slides on the other surface.
Q: 3. Which of the following statements about friction is false? a. Friction only acts if an object is…
A: Friction is an opposing force which always opposes the relative motion of two surface in contact.It…
Q: Part A) What is the force of friction on the box which is staying at rest on the incline below?…
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Q: A 75.0 kg wrecking ball hangs from a uniform, heavy-duty chain of mass 26.0 kg. (a) Find the maximum…
A: The free body diagram shows the wrecking ball hanging.
Q: 1.A 150.0g hockey puck is placed on the floor of a bus. The coefficient of kinetic friction between…
A: Given: The mass of the puck is 150 g. The coefficient of the kinetic friction is 0.654. The time…
Q: A moonshiner makes the error of filling a glass jar to the brim and capping it tightly. The…
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Q: 2. How is the coefficient of static friction defined and measureda A. Force of sliding friction…
A: Static friction force exist on a stationary object. Let Force of static friction force is F and…
Q: QUESTION 3 A box at rest that weighs 30N is pulled by an applied force of 10 N. The coefficient of…
A: Solution: Given Values, Applied Force (F)=10 NWeight (W)=N=mg=30 NCoefficient of static friction…
Q: Question 4 Which of the following best describes the directions of friction and normal force? Your…
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Q: I'm placed 35 kilograms of leaves onto a plastic tarp, and am dragging it across the lawn. The force…
A: Introduction: According to Newton's 2nd law of motion, force applied on the object causes…
Q: What design aspects of a snowmobile make it useful for traveling over ice and snow? Be sure to…
A: The Law of Inertia, Newton's First Law of Motion, asserts that an object's velocity (or speed in a…
Q: 1. A force of 42 N is needed to start a box sliding across the floor. The weight of the box is 55 N.…
A: Force needed to start a box (F) = 42 N Weight of the box (N) = 55 N
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- Lisa measured the coefficient of static friction between two pairs of running shoes and the track in Example 6.1 (page 159). If she wants to have an advantage in a race, which shoes should she wear, the ones with a high coefficient or the ones with the low coefficient of static friction? Explain.Which of the following statements is true about friction? k and us are independent on the mass of the object. The coefficients of friction are independent on the nature of the surfaces. Hk is greater than us Static friction is relatively constant while kinetic friction is not. The force of static friction depends on the area of contact between the two surfaces.A dynamometer is an instrument used to measure forces. A block of wood whose mass is 10 kilograms is on a table also made of wood and is pulled using a dynamometer. Determine the magnitude of the force that can be read about the dynamometer at the following times: a. Just before the block begins its movement (the coefficient of frictionstatic equals 0.35) b. When moving with a uniform speed (the dynamic coefficient of frictionequals 0.28) Free Body Diagram of ExerciseBalance of forces in both axesOperationsResults
- A dynamometer is an instrument used to measure forces. A block of wood whose mass is 10 kilograms is on a table also made of wood and is pulled using a dynamometer. The force is exerted at an angle of 18 degrees. Determine the magnitude of the force that can be read about the dynamometer at the following times: a. Just before the block begins its movement (the coefficient of frictionstatic equals 0.35) b. When moving with a uniform speed (the dynamic coefficient of frictionequals 0.28) Free Body Diagram of ExerciseBalance of forces in both axesOperationsResultsA supermarket pushcart is being pushed at 45 degrees with respect to the horizontal from the starting point to the cashier, which is 25 feet away. The cart is 5kg, it contains 2 boxes of 10-1b flour and seven packs of half-kilogram sugar. The coefficient of friction between the wheels and the floor is 0.03. a. What force is required? b. How much force is required?A 2.0-N rock slides on a frictionless inclined plane. Which one of the following statements is true concerning the normal force that the plane exerts on the rock? ... A The normal force is less than 2.0 N, but greater than zero newtons. B The normal force increases as the angle of inclination, q, is increased. The normal force is greater than 2.0 N. D The normal force is 2.0 N.
- A 10kg block is pressed against a vertical wall and held in place by a force F of 150 N, 37 degrees above the horizontal. The coefficient of static friction is μs= 0.10. The magnitude and direction of the frictional force is A. 12 N downward B. 12 N upward C. 0.0 N D. 7.7 N downward E. 7.7 N upwardThe force needed to get a block moving and to just barely keep it moving were used to calculate the coefficient of static friction and the coefficient of kinetic friction for the block. Which values are most likely the correct ones for this block? O .35 for coefficient of static friction and .35 for coefficient of kinetic friction 25 for coefficient of static friction and .35 for coefficient of kinetic friction 35 for coefficient of static friction and .25 for coefficient of kinetic friction 25 for coefficient of static friction and .25 for coefficient of kinetic frictionA block weighing 60 N rests on a horizontal floor. a) What is the minimum force that will make the block move if the coefficient of static friction is 0.20? b) What is the minimum force that will keep the block moving at uniform speed once it starts moving if the coefficient of kinetic friction is 0.10? please include clear solutions please.
- A block weighing 60 N rests on a horizontal floor. a) What is the minimum force that will make the block move if the coefficient of static friction is 0.20? b) What is the minimum force that will keep the block moving at uniform speed once it starts moving if the coefficient of kinetic friction is 0.10? 5.You need to push a couch 4 m to the other side of the room. After the initial push to get it going you push on the 90kg couch with a steady horizontal force of 600 N. The coefficient of kinetic friction between the couch and the floor is 0.6. 1. What is the magnitude and direction of the frictional force on the couch? 2. What is the magnitude and direction of the net force on the couch? 3. What is the magnitude and direction of the acceleration of the couch?A massive block was pulled at an angle of 30o in a horizontal rough surface by a force of magnitude F enough for the block to move. If we set the +x-axis at the right, which of the following statements is true about the forces acting on the block? Explain answer. A. The direction of the frictional force experienced by the block is to the leftB. The normal force’s direction is 30 degrees above the +x-axisC. The block will not experience friction since F is just enough to move the block D. The direction of the weight of the block is about 210 degrees from the x-axis.