Advantages and Disadvantages of Friction

Q: Emily wants to push a table across the floor. The table weights 1500N and the coefficient of static…

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Q: A 28-N force is applied to a 5-kg object to move it with a constant velocity of 3.4 m/s across a…

A: Given  Force applied on object Fa=28 N Mass of the object m=5 kg Acceleration due to gravity…

Q: Question 3 The kinetic friction force is always less than static friction force True False

A: TRUE Kinetic friction is always less than static friction.

Q: if a box slides down a hill, then stops on the hill what is the direction of friction

A: Friction is a force between two surfaces that are sliding, or trying to slide, across each other.…

Q: THEORY OF FRICTION.

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Q: State the empirical laws of static friction and kinetic friction

A: The empirical laws are: Friction is independent of surface of contact. Coefficient of kinetic…

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…

Q: comment on why studying friction between materials may be useful

A: friction between materials is used for the accurate calculation of the braking torque needed to hold…

Q: ring contact, calculate the minimum value of the weight (in N) of the ring (correct to 1 decimal…

A: Given: The radius of the ring, r=0.16m Acceleration due to gravity, g=9.80m/s2 The coefficient of…

Q: how to calculate mass of block in friction lab ,

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Q: What is the cause of friction?

A: Friction is a force that resists the relative motion between two objects or materials. The causes of…

Q: 3. A 12.0-kg box is pushed along a horizontal surface by a 24-N force as illustrated in the diagram.…

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Q: Why is static friction?

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Q: How to calculate magnitude of frictional force?

A: Frictional force is the force that opposes the motion of the object.

Q: Explain friction and its types?

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Q: A person weights 686 Newtons. On their way home they see an Ice patch .they run and slide across the…

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Q: The coefficient of kinetic friction between a 40 kg crate and the warehouse floor is 60 % of the…

A: The normal reaction acting on the crate will be: Therefore, the kinetic frictional force acting on…

Q: What Causes Friction?

A: Friction is a force that resists the relative motion between two objects or materials. The causes of…

Q: some common products that take advantage of knowing the coefficient of friction

A: The force of friction acting on a body is defined as the product of the friction’s coefficient and…

Q: A child has mass 6.0 kg and slides down a 35° incline with constant speed under the action of a 34-N…

A: The expression for the required coefficient of kinetic friction is,

Q: What do you think makes something have a higher coefficient of friction?

A: Coefficient of friction is the measure of force of friction between two surfaces in contact. More…

Q: Explain static friction

A: The force of friction that occurs even before the motion takes place is called static friction . And…

Q: APPLICATION Find the static coefficient of friction in the diagram below. Final answer needs to be…

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Q: Compare the strengths of static, sliding, and rolling friction.

A: # Stating friction acts when there is a force but the object is not moving. Here static friction is…

Q: Question 5 A physics book of mass 500-g rest on a table. The magnitude of friction force act on the…

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Q: In the figure shown, the coefficient of kinetic friction between the block and the incline plane is…

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Q: Explain the laws of kinetic friction.

A: A frictional force acts between two moving surfaces in the opposite direction of its movement is the…

Q: In designing machinery, would we prefer to use materials with a larger or smaller coefficient of…

A: Large coefficient of friction means high energy dissipation in machinery.

Q: State the laws of static friction.

A: Static friction is the force which helps object to remain in rest. For moving an object this force…

Q: A 945.0kg car traveling rightward at 22.6 m/s slams on the brakes and skids to a stop (with locked…

A: Given: Mass of the car = 945 Kg The velocity of the car= 22.6 m/s Coefficient of friction between…

Q: 6. Friction between two surfaces in contact may be lessened by changing sliding friction friction…

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Q: . A hockey puck leaves a player's stick with a velocity of 10 m/s and slides 40 m along the ice…

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Q: The Coefficient of Kinetic Friction Chart

A: Coefficient of kinetic friction  The coefficient of friction is defined as the ratio of…

Q: -ko box is being pushed along a borizontal surface The coefficient of static friction between the…

A: Since block is moving  (accelerating ) so kinetic friction will acts.  Given mass m = 50 kg…

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,

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”