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A: When the speed is constant, the net force is zero and the acceleration is also zero.
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Q: Give an example of applications of friction in our daily life?
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Q: Calculate the horizontal component of the force.
A: Given: Force, F=186N Inclined of an angle, θ=1.00101 radians=0.00101×180π=57.3536=57.4∘
Q: Which is normally greater, static friction or sliding friction on the same object?
A: Friction is the resisting force which opposes the motion of the object.
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Q: object is situated at rest on a horizontal surface with a static friction coefficient of 0.33.…
A: Static friction fs = uN
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Q: crate is at rest on a level surface. If the coefficient of static friction between the crate and the…
A: Given:- The mass of the object m = 40 kg the coefficient of static friction between the crate and…
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: Which of the following is the typical relationship between kinetic friction and static friction?
A: A friction force is the force which opposes the relative motion between the two bodies.
Q: Explain Four types of friction?
A: The force which opposing the motion of an object is called frictional force. There are four kinds of…
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A: Given data: Weight of the crate is W = 500 N Horizontal force applied to pull the crate is F = 230…
Q: Please answer
A: Solution: 5. Consider the given quantities: μk → co-efficient of kinetic frictionμs→…
Q: QUESTION 17 The diagram below represents a block sliding across a table at a constant speed. All…
A: A block sliding across a table at constant speed with all the forces given except the frictional…
Q: What are Static Friction? what are the laws associated with it?
A: Static friction is a type of the friction experienced when individuals try to move a stationary…
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A: At constant speed the net force on the object and acceleration of that object is equal to zero.…
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A: mass, m = 10 kg static friction coefficient = 0.75 kinetic friction coefficient = 0.62 Force, F =…
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Q: When you learn to drive, you discover that you need to let up slightly on the brake pedal as you…
A: Given: When you learn to drive, you discover that you need to let up slightly on the brake pedal as…
Q: What is Kinetic and Static Friction?
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Q: Describe the difference between coefficients of static and kinetic friction. Which one is greater?…
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Q: Explain the importance of friction force in everyday life by citing at least three situations.
A: Friction:) it is the resistance offered by the surfaces that are in contact
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A: The minimum force required to move any object is the force work on the body due to friction between…
Q: Which statement is true about the coefficientof kinetic friction? Select one: a. It has units of N…
A: Since the coefficient of kinetic friction is unitless and is a scalar quantity. So, it does not have…
Q: What is an example of static friction?
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Q: What are the hypothesized relationships between a) Drag Force and Cross-Sectional Area, and b) Drag…
A: To state hypothesized relationship between: a) Drag Force and Cross-Sectional Area, and b) Drag…
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Q: 13. A 7.5 kg backpack is sliding across the floor. The coefficient of friction between the backpack…
A: Given data The mass of the backpack is given as m = 7.5 kg. The coefficient of friction between the…
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Q: Suppose there is a box of books with a mass of 10 kg resting on a flat horizontal table, and that…
A: Given data: Mass of the books (m) = 10 kg Coefficient of static friction between the table and the…
Q: A warehouse worker pushes a box with a mass of 11.6 kg in a horizontal plane at a constant speed of…
A: Fapp=μkN=μkmg
Q: How do you find the coefficient of static friction between two surfaces?
A: The coefficient of static friction is the ratio of static frictional force to the normal force. The…
Q: how do we find kinetic friction coefficient in this question?
A:
Q: what is the coefficient of static friction of wood on plastic ? thank you
A: Given:Consider friction between wood and plastic to find out the coefficient of static fricton…
Q: QUESTION 9 If the coefficient of static friction between all contacting surfaces Us = 0.3, determine…
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Q: Describe the factors that cause static friction between two surfaces to increase.
A: Considering the object on a horizontal surface the expression for frictional force will be,
what is the difference between kinetic friction and static friction?
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- A ski slides down a 25 degree slope for 25 meters before taking off a negligibly short horizontal ramp. If the jumper's take-off speed is 15 m/s, what is the kinetic coefficient of kinetic friction between the skis and slope?Tom reached a speed of 29 m/s in the downhill skiing competition. Suppose he left the slope at that speed and then slid freely along a horizontal surface. If the coefficient of kinetic friction between his feet and the ground was 0.27 and his final speed was half of his initial speed, find the distance he traveled?An object is given an initial speed of 5 m/s on a horizontal surface.It slides 10 m on the horizontal surface before it stops due to friction.What is the coefficient of kinetic friction between the object and the surface?
- A rock rests on a horizontal plane. The plane is slowly tilted so that the angle between the surface and the horizontal increases to 20 degrees, at which point the rock is about to slip. What is the coefficient of static friction between the rock and the surface, to two significant figures? O 0.36 2.2 3.4 9.4 O 13 OWhich statement about kinetic friction and static friction is true? (Some of the options mention a horizontal force that friction opposes. This means that a force is pulling horizontally and friction is acting in the opposite direction.) Your answer: The force of kinetic friction changes if the speed of the object decreases. The force of kinetic friction changes if the horizontal force (or forces) it opposes gets weaker. The force of static friction changes if the speed of the object decreases. The force of static friction changes if O the horizontal force (or forces) it opposes gets weaker.In a pickup game of dorm shuffleboard, students crazed by final exams use a broom to propel a calculus book along the dorm hallway. If the 3.5 kg book is pushed from rest through a distance of 0.83 m by the horizontal 31 N force from the broom and then has a speed of 1.0 m/s, what is the coefficient of kinetic friction between the book and floor? Number Units
- the kinetic friction force that a horizontal surface exerts on a 60 kg object is 50 N. If the initial speed of the object of 25 m/s, what of the distance that it will slide before coming to a stop?A 75.0-g arrow, fired at a speed of 110 m/s to the left, impacts a tree, which it penetrates to a depth of 12.5 cm before coming to a stop. Assuming the force of friction exerted by the tree is constant, what are the magnitude and direction of the friction force acting on the arrow?An automobile driver traveling down an 8% grade slams on his brakes and skids 30 m before hitting a parked car. A lawyer hires an expert who measures the coefficient of kinetic friction between the tires and road to be k = 0.45. Is the lawyer correct to accuse the driver of exceeding the 25-MPH speed limit? Explain.
- In the back of the truck is a 200kg box that has a coefficient of static friction of 0.8 and a coefficient of kinetic friction of 0.4 between the truck and the box. You are driving on the freeway at 25m/s. There is a car ahead of you that is driving at 30m/s. Your front bumper is 30m behind the back of the first car. You would like to pass the other car and pull back into the same lane when your back bumper is 10m ahead of the front bumper of the first car in 5 seconds. The length of the car ahead of you is 3m and the length of your car is 4m.a) What minimum acceleration do you need to do this?b) What distance does your car travel in that time?c) Does the box in your truck start to slide off the truck?A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. The coefficients of static and kinetic friction between the hockey puck and the metal ramp are us 0.40 and uk = 0.30, respectively. The puck's initial speed is 4.9 m/s. What speed does it have when it slides back down to its starting point? 2.8 m/s 4.9 m/s 4.2 m/s 3.5 m/sA 20-kg box of oranges slides from rest down a frictionless incline from a height of 5.0 m. A constant frictional force, introduced at point A, brings the block to rest at point B, 19 m to the right of point A. What is the coefficient of kinetic friction, Hk, of the surface from A to B? 5.0 m A 19 m 0.11 0.52 0.26 0.33 0.47