Kinetic friction is the?

Kinetic friction is the?

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1 Answer

Answer :

Kinetic friction is the friction force acting when the body is in motion.

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Related questions

Tangent of angle of friction is equal to?

Description : Tangent of angle of friction is equal to?

Last Answer : Tangent of angle of friction is equal to coefficient of friction.

Dynamic friction as compared to static friction is?

Description : Dynamic friction as compared to static friction is?

Last Answer : Dynamic  friction  is   less  compared  to  static  friction.

Coulomb friction is the friction between?

Description : Coulomb friction is the friction between?

Last Answer : Coulomb friction is the friction between bodies having relative motion.

Limiting force of friction is the?

Description : Limiting force of friction is the?

Last Answer : Limiting force of friction is the friction force acting when the body is just about to move.

Coefficient of friction is the?

Description : Coefficient of friction is the?

Last Answer : Coefficient of friction is the ratio of limiting friction and normal reaction.

On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be?

Description : On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be?

Last Answer : On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be zero at its upper end.

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be?

Description : On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be?

Last Answer : On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be upwards at its upper end.

The ratio of limiting friction and normal reaction is known as?

Description : The ratio of limiting friction and normal reaction is known as?

Last Answer : The ratio of limiting friction and normal reaction is known as coefficient of friction.

The coefficient of friction depends on?

Description : The coefficient of friction depends on?

Last Answer : The coefficient of friction depends on nature of surface.

Angle of friction is the?

Description : Angle of friction is the?

Last Answer : Angle of friction is the angle between normal reaction and the resultant of normal reaction and the limiting friction.

What is Friction?

Description : What is Friction? 

Last Answer : Friction is the force that opposes the relative motion or tendency to such motion of two bodies in contact. If we try to push a block of wood across a table, there are two opposing forces ... table) the object moves further and further before stopping. This demonstrates Galileo's law of inertia too.

We often sprinkle talcum powder on the carom board . This is done to reduce ______ between the board and the striker. a) friction b)movement c)speed d)contact

Description : We often sprinkle talcum powder on the carom board . This is done to reduce ______ between the board and the striker. a) friction b)movement c)speed d)contact

Last Answer : a) friction

________ is a substance that can reduce the force of friction between the two surface in contact. a) lubricant b)paste c)water d)push

Description : ________ is a substance that can reduce the force of friction between the two surface in contact. a) lubricant b)paste c)water d)push

Last Answer : a) lubricant

A ball bearing is used in shafts of motors, dynamos to reduce ______. a) movement b)friction c)speed d)none

Description : A ball bearing is used in shafts of motors, dynamos to reduce ______. a) movement b)friction c)speed d)none

Last Answer : b)friction

The skidding of vehicle on snow is because of very little _______. a) pull b)friction c)push d)none

Description : The skidding of vehicle on snow is because of very little _______. a) pull b)friction c)push d)none

Last Answer : b)friction

Write two advantages and two disadvantages of friction.

Description : Write two advantages and two disadvantages of friction.

Last Answer : They change the direction  of the objects  They change the size of the objects

Describe with neat diagram air friction damping.

Description : Describe with neat diagram air friction damping. 

Last Answer : Air Friction Damping: Here air trapped in the chamber works as damping medium for the piston movement connected to the spindle. The piston moves in the air chamber. The clearance between piston and ... will be the damping torque, bringing the pointer to the equilibrium position quickly. 

The friction losses in Real Transformers are :

Description : The friction losses in Real Transformers are :  (A) 0% (B) 5% (C) 25% (D) 50%

Last Answer : A

The normal value of adhesion friction is?

Last Answer : The normal value of adhesion friction is 0.25.

The friction at the track is proportional to?

Last Answer : The friction at the track is proportional to speed.

Air resistance ______ with an increase in the speed of the object moving through it. a) increases b)decreases c)remains same d)no change

Description : Air resistance ______ with an increase in the speed of the object moving through it. a) increases b)decreases c)remains same d)no change

Last Answer : a) increases

Liquid pressure at any point inside the liquid, depends upon _______of the liquid and the height of liquid column above that point. a) area b)density c)weight d)none

Description : Liquid pressure at any point inside the liquid, depends upon _______of the liquid and the height of liquid column above that point. a) area b)density c)weight d)none

Last Answer : b)density

Kinetic friction is a.Maximum value of frictional force when a body is about to move b.Friction between two well lubricated bodies c.Friction force acting when the body is in motion d.Driction force which keeps a body in motion e.None of the above

Description : Kinetic friction is a.Maximum value of frictional force when a body is about to move b.Friction between two well lubricated bodies c.Friction force acting when the body is in motion d.Driction force which keeps a body in motion e.None of the above

Last Answer : c. Friction force acting when the body is in motion

The maximum frictional force which comes into play when a body just begins to slide over the surface of another body is known as a.Kinetic friction b.Rolling friction c.Dynamic friction d.Limiting friction e.Sliding friction

Description : The maximum frictional force which comes into play when a body just begins to slide over the surface of another body is known as a.Kinetic friction b.Rolling friction c.Dynamic friction d.Limiting friction e.Sliding friction

Last Answer : d. Limiting friction

What is friction? Define coefficient of static friction and coefficient of kinetic friction.

Description : What is friction? Define coefficient of static friction and coefficient of kinetic friction.

Last Answer : What is friction? Define coefficient of static friction and coefficient of kinetic friction. Give the necessary formula for each.

State the laws of kinetic friction.

Description : State the laws of kinetic friction.

Last Answer : State the laws of kinetic friction.

What is kinetic friction and static friction?

Description : What is kinetic friction and static friction?

Last Answer : Friction is the resistance to movement of an object pressing/resting/moving on a surface. It's not intuitively obvious but the standing still friction and moving friction are different. Assume you have a ... than the force required to keep it moving (kinetic friction) after it has begun to move.

What would cause the force of kinetic friction to increase?

Description : What would cause the force of kinetic friction to increase?

Last Answer : an increase in uk (apex)

Friction can be reduced by changing over from _____. A. Sliding to rolling B. Dynamic to static C. Potential energy to kinetic energy D. Rolling to sliding

Description : Friction can be reduced by changing over from _____. A. Sliding to rolling B. Dynamic to static C. Potential energy to kinetic energy D. Rolling to sliding

Last Answer : ANSWER: A

A block of mass m is pulled along a surface as shown. The coefficient of kinetic friction between the block and the surface is m and the tension in the rope is T. The acceleration of the block is (a) a = T cos q/mg (b) a = T cos q/mgm (c) a = T cos q/m + mmg (d) None of the above

Description : A block of mass m is pulled along a surface as shown. The coefficient of kinetic friction between the block and the surface is m and the tension in the rope is T. The acceleration of the block is (a) a = T cos q/mg (b) a = T cos q/mgm (c) a = T cos q/m + mmg (d) None of the above

Last Answer : Ans:(d)

The function of ball bearings in a wheel is – (1) to increase friction (2) to convert kinetic friction into rolling friction (3) to convert static friction into kinetic friction (4) just for convenience

Description : The function of ball bearings in a wheel is – (1) to increase friction (2) to convert kinetic friction into rolling friction (3) to convert static friction into kinetic friction (4) just for convenience

Last Answer : (2) to convert kinetic friction into rolling friction Explanation: A ball bearing is a type of rollingelement bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads.

Kinetic friction is always A. lesser than static friction B. greater than static friction C. equal to static friction D. equal to contact force

Description : Kinetic friction is always A. lesser than static friction B. greater than static friction C. equal to static friction D. equal to contact force

Last Answer : lesser than static friction

In case of a pipe exit fitted with a nozzle, the (A) Conversion of kinetic head to pressure head is facilitated (B) Conversion of pressure head to kinetic head is facilitated (C) Power transmitted through the nozzle is maximum, when the head lost due to friction in the pipe is equal to one third of the total supply head (D) Both (B) and (C)

Description : In case of a pipe exit fitted with a nozzle, the (A) Conversion of kinetic head to pressure head is facilitated (B) Conversion of pressure head to kinetic head is facilitated (C) Power transmitted through the nozzle ... in the pipe is equal to one third of the total supply head (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Tangent of angle of friction is equal to (A) Kinetic friction (B) Limiting friction (C) Angle of repose (D) Coefficient of friction

Description : Tangent of angle of friction is equal to (A) Kinetic friction (B) Limiting friction (C) Angle of repose (D) Coefficient of friction

Last Answer : (D) Coefficient of friction

Kinetic friction is the (A) Tangent of angle between normal reaction and the resultant of normal reaction and the limiting friction (B) Ratio of limiting friction and normal reaction (C) The friction force acting when the body is just about to move (D) The friction force acting when the body is in motion

Description : Kinetic friction is the (A) Tangent of angle between normal reaction and the resultant of normal reaction and the limiting friction (B) Ratio of limiting friction and normal reaction (C) The friction force ... body is just about to move (D) The friction force acting when the body is in motion

Last Answer : (D) The friction force acting when the body is in motion

Ice skating is possible and practical because of a unique property of water. Is it because: w) The coefficient of kinetic friction of steel on frozen water decreases with decreasing temperature x) Ice readily sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator

Description : Ice skating is possible and practical because of a unique property of water. Is it because: w) The coefficient of kinetic friction of steel on frozen water decreases with decreasing temperature x ... sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator 

Last Answer : ANSWER: Y -- THE MELTING POINT DECREASES WITH INCREASING PRESSURE 

A block of wood initially at rest slides down an inclined plane. Neglecting friction, the kinetic energy of the block at the bottom of the plane is: w) all converted into heat x) equal to its potential energy (with respect to the bottom of the plane) when it was at the top of the plane y) less than its kinetic energy at the top of the plane z) dependant on the materials of which the block is made

Description : A block of wood initially at rest slides down an inclined plane. Neglecting friction, the kinetic energy of the block at the bottom of the plane is: w) all converted into heat x) equal to its ... kinetic energy at the top of the plane z) dependant on the materials of which the block is made 

Last Answer : ANSWER: X -- EQUAL TO ITS POTENTIAL ENERGY (WITH RESPECT TO THE BOTTOM OF PLANE) WHEN IT WAS AT THE TOP OF THE PLANE.

The function of ball bearings in a wheel is : (1) to increase friction (2) to convert kinetic friction into rolling friction (3) to convert static friction into kinetic friction (4) just for convenience

Description : The function of ball bearings in a wheel is : (1) to increase friction (2) to convert kinetic friction into rolling friction (3) to convert static friction into kinetic friction (4) just for convenience

Last Answer : to convert kinetic friction into rolling friction

Define angle of repose.

Description : Define angle of repose. 

Last Answer : Angle of repose is defined as the angle made by the inclined plane with the horizontal plane at which the body placed on an inclined plane is just on the point of moving down the plane, under the action of its own weight.

Define the ideal machine and ideal effort.

Description : Define the ideal machine and ideal effort.

Last Answer : Ideal Machine is the machine whose efficiency is 100 % and in which friction is zero.  Ideal Effort is the ratio of load lifted to velocity ratio.

six most common multiples

Description : six most common multiples

Last Answer : six most common multiples

A single force and a couple acting in the same plane upon a rigid body?

Description : A single force and a couple acting in the same plane upon a rigid body?

Last Answer : A single force and a couple acting in the same plane upon a rigid body cannot balance each other.

The algebraic sum of moments of the forces forming couple about any point in their plane is?

Description : The algebraic sum of moments of the forces forming couple about any point in their plane is?

Last Answer : The algebraic sum of moments of the forces forming couple about any point in their plane is equal to the moment of the couple.

Frictional force encountered after commencement of motion is called?

Description : Frictional force encountered after commencement of motion is called?

Last Answer : Frictional force encountered after commencement of motion is called dynamic friction.

If a suspended body is struck at the center of percussion, then the pressure on...

Description : If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be?

Last Answer : If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be zero.

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart...

Description : A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span?

Last Answer : A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span 4.0 cm.

The possible loading in various members of framed structures are?

Description : The possible loading in various members of framed structures are?

Last Answer : The possible loading in various members of framed structures are compression or tension.

The units of moment of inertia of mass are?

Description : The units of moment of inertia of mass are?

Last Answer : Moment of inertia mass*velocity [Kg M T'-1]

The center of gravity of a triangle lies at the point of?

Description : The center of gravity of a triangle lies at the point of?

Last Answer : The center of gravity of a triangle lies at the point of concurrence of the medians.

The center of percussion of the homogeneous rod of length L suspended at the top will be?

Description : The center of percussion of the homogeneous rod of length L suspended at the top will be?

Last Answer : The center of percussion of the homogeneous rod of length L suspended at the top will be 2L/3.