# The coefficient of friction depends on?

The coefficient of friction depends on?

The coefficient of friction depends on nature of surface.

## Related questions

Description : Coefficient of friction is the?

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

Description : Kinetic friction is the?

Last Answer : Kinetic friction is the friction force acting when the body is in motion.

Description : Tangent of angle of friction is equal to?

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

Description : Dynamic friction as compared to static friction is?

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

Description : Coulomb friction is the friction between?

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

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.

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.

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.

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.

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.

Description : Problem on temperature coefficient of resistance 3

Last Answer : Problem on temperature coefficient of resistance 3

Description : Problem on temperature coefficient of resistance 2

Last Answer : Problem on temperature coefficient of resistance 2

Description : Problem on temperature coefficient of resistance 1

Last Answer : Problem on temperature coefficient of resistance 1

Description : A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9

Last Answer : A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9

Description : The coefficient of reflection for current wave is

Last Answer : The coefficient of reflection for current wave is 1 or -1

Description : Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these

Last Answer : Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these

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.

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

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

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

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

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

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.

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

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

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

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

Description : A uniform cylinder of weight W is rolling while slipping on a rough horizontal surface under the influence of a horizontal force. The force of friction between the cylinder and the surface is a. ... c.Indeterminate d.Determinate but depends on the acceleration of the cylinder e.None of the above

Description : The ideal angle of banking provided on roads a.Depends on (velocity)2 of vehicle b.Depends on the nature of road surface c.Depend on coefficient of friction between the road and the vehicle cantact point d.Depends on weight of the vehicle e.All above

Last Answer : a. Depends on (velocity)2 of vehicle

Description : A uniform cylinder of weight W is rolling while slipping on a rough horizontal surface under the influence of a horizontal force. The force of friction between the cylinder and the surface is a. ... on the acceleration of the cylinder d.107 dynes e.Proportional to the coefficient of static friction

Last Answer : c. Determinate but depends on the acceleration of the cylinder

Description : Name two factors on which the coefficient of friction depends.

Last Answer : Name two factors on which the coefficient of friction depends.

Description : Consider tile following statements: [IES-1993; 2002; 2006] Radius of friction circle for a journal bearing depends upon 1. Coefficient of friction 2. Radius of the journal 3. Angular speed of rotation of the shaft Which of the ... ) 1,2 and 3 (b) Only 1 and 2 (c) Only 2 and 3 (d) Only 1 and 3

Last Answer : (b) Only 1 and 2

Description : Which of the following statements is/are true for coulomb damping? 1. Coulomb damping occurs due to friction between two lubricated surfaces2. Damping force is opposite to the direction of motion of vibrating body ... 2, 3 and statement 4 c. Only statement 2 d. All the above statements are true

Last Answer : c. Only statement 2

Description : The coefficient of friction depends upon (A) Nature of surfaces (B) Area of contact (C) Shape of the surfaces (D) All of the above

Last Answer : (A) Nature of surfaces

Description : The coefficient of friction depends on (A) Area of contact (B) Shape of surfaces (C) Strength of surfaces (D) Nature of surface

Last Answer : (D) Nature of surface

Description : Enlist any two factors on which friction coefficient ‘F’ depends.

Last Answer : i. Diameter of pipe ii.Velocity of flow  iii. Reynold’s number of the flow  iv.Roughness condition of the pipe surface

Description : Does anyone know the coefficient of friction for an A rated tire?

Last Answer : answer:I can't give you an exact number on that, but I the A traction grade is the second-highest rating given to a tire, AA being the highest. The traction grade applies to wet ... 'd see on a skidpad test. There, you have sidewall construction and vehicle characteristics to consider as well.

Description : A particle inside a hollow sphere of internal radius r with coefficient of friction 1/?3 can rest upto height of a.0.18 r b.0.435 r c.0.25 r d.0.134 r e.0.125 r

Last Answer : d. 0.134 r

Description : A car is travelling at 90 km/hour on a rough road where the coefficient of friction between the road and the tyre is 0.5. The distance the car will skid before stopping when the brakes are jammed suddenly would be a.127.4 m b.95.55 m c.63.7 m d.31.85 m e.90 m

Last Answer : c. 63.7 m

Description : A 5 m ladder of mass 25 kg is placed in a position where its inclination to a vertical wall is at 30?. A 100 kg man is to climb the ladder. If the coefficient of static friction is 0.25 the height along ladder at which the slipping will be induced would be a.2.4 m b.1.6 m c.0.8 m d.1.2 m e.0.5 m

Last Answer : c. 0.8 m

Description : Which of the following bearing will have least coefficient of friction a.Single ball bearing b.Cylinderical roller bearing c.Self aligury bearing d.Thrust ball bearing e.Tapered bearing

Last Answer : e. Tapered bearing

Description : The coefficient of friction is a.The tangent of the angle between the normal reaction and direction of limiting friction b.The tangent of the angle between the normal reaction and the resultant ... e.The angle between the normal reaction and the resultant of normal reaction and the limiting friction

Last Answer : a. The tangent of the angle between the normal reaction and direction of limiting friction

Description : The coefficient of static friction will have the highest value in case of a.Mild steel and mild steel b.Mild steel and copper c.Cast iron and steel d.Rope and wood e.Any of the above loctions

Last Answer : d. Rope and wood

Description : A man wished to move a block of size 3 m x 3 m weighing 80 kg. The coefficient of friction between the block and the ground is 0.27. Which of the following methods should be used? a.Slide along the ground by pushing b.Ask for cranes c.Pull it d.Tip it over e.Lift it bodily

Last Answer : d. Tip it over

Description : A crate weighing 40 kg rests on a cart moving with an acceleration W. The coefficient of friction between the cart and the crate is a.2.45 m/sec2 b.4.00 m/sec2 c.0.25 m/sec2 d.4.16 m/sec2 e.1.25 m/sec2

Last Answer : a. 2.45 m/sec2

Description : A weight of 4.9 N rests on a rough horizontal floor that has a coefficient of friction of 0.5. If g = 9.8 m/s2, the smallest horizontal force that gives the weight an acceleration of 4m/s2 is most nearly a.2.5 N b.3 N c.2 N d.4.5 N e.4.9 N

Last Answer : d. 4.5 N

Description : A 20kg toy wagon is pulled with an applied force of 35N. if the handle of the wagon is at 45, and the coefficient of friction is 0.1, find the acceleration of the wagon?