How does friction keep our feet from slipping?

How does friction keep our feet from slipping?
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1 Answer

Answer :

The tiny ridges on the soles of our feet 'lock in' toirregularities in the ground - this creates friction which preventsus from slipping.
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Related questions

How does friction keep our feet from slipping?

Description : How does friction keep our feet from slipping?

Last Answer : The tiny ridges on the soles of our feet 'lock in' toirregularities in the ground - this creates friction which preventsus from slipping.

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.Proportional to the coefficient of static friction b.Proportional to the coefficient of dynamic friction c.Indeterminate d.Determinate but depends on the acceleration of the cylinder e.None of the above

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

Last Answer : c. Indeterminate

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

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

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.Indeterminate b.Proportional to the coefficient of dynamic friction c.Determinate but depends on the acceleration of the cylinder d.107 dynes e.Proportional to the coefficient of static friction

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

The ball bearings are provided with a cage (a) to reduce friction (b) to facilitate slipping of balls (c) to prevent the lubricant from flowing out (d) to maintain the balls at a fixed distance apart

Description : The ball bearings are provided with a cage (a) to reduce friction (b) to facilitate slipping of balls (c) to prevent the lubricant from flowing out (d) to maintain the balls at a fixed distance apart

Last Answer : (d) to maintain the balls at a fixed distance apart

Incorrect statement for co-efficient of friction could be that A. The coefficient of friction is denoted by the Greek letter µ. B. The coefficient of friction is directly proportional to the force of friction C. The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure D. The coefficient of friction is inversely proportional to the force pressing the surfaces together

Description : Incorrect statement for co-efficient of friction could be that A. The coefficient of friction is denoted by the Greek letter µ. B. The coefficient of friction is directly proportional to ... D. The coefficient of friction is inversely proportional to the force pressing the surfaces together

Last Answer : The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure

How to I keep by knee-high boots from slipping down as I go through my day?

Description : How to I keep by knee-high boots from slipping down as I go through my day?

Last Answer : I’m assuming these are man made materials and there is an elastic band at the top? If so, replace the elastic. Or do some calf exercises. :)

What can i use to keep from slipping in the tub?

Description : What can i use to keep from slipping in the tub?

Last Answer : To avoid slipping in the tub use the No Skidding Tile & Bath Tub Treatment #10900 Series. You treat your tub with this solution. Hotels and Hospitals use this product to avoid accidents in the tub. [email protected]

A man carrying a load on his back bends forward because of one of the following reasons: (a) To adjust the centre of gravity of the system such that the vertical line through the centre of gravity passes within the base (b) The man feels lighter because of greater reaction (c) To prevent the load from slipping over and falling down (d) To keep the centre of gravity of the system outside the body

Description : A man carrying a load on his back bends forward because of one of the following reasons: (a) To adjust the centre of gravity of the system such that the vertical line through the centre of gravity ... slipping over and falling down (d) To keep the centre of gravity of the system outside the body

Last Answer : Ans:(a)

Have you ever seen someone slipping something into someone's drink? What would you do?

Description : Have you ever seen someone slipping something into someone's drink? What would you do?

Last Answer : answer:A few times, I used to work in a club when I was a teenager, doing all the lighting effects. As I got older I left and got a job as a security guard, but I did return to the club for a few ... they would buy a drink and drug it on their way to the table. It is not easy to spot at all.

How can I prevent my shoulders from slipping out of joint while I sleep?

Description : How can I prevent my shoulders from slipping out of joint while I sleep?

Last Answer : Duct tape?

I have taught my self to knit and am working on a baby blanket. The pattern says p2tog without slipping sts off needle, then k2tog over same sts. What does that mean?

Description : I have taught my self to knit and am working on a baby blanket. The pattern says p2tog without slipping sts off needle, then k2tog over same sts. What does that mean?

Last Answer : Is there a button hole or little space in the picture of blanket? After you p2tog., you have one stitch on needle. It is not very clear and I have been knitting for years. Is there a knitting shop near you?. Maybe w. the instructions in front of her, the expect could explain. Makes no sense to me.

If you want to stop the car in the shortest distance on an icy road, you should a.107 dynes b.not apply the brakes c.pump' the brakes d.push hard the brakes to lock the wheels e.push just hard enough to prevent slipping

Description : If you want to stop the car in the shortest distance on an icy road, you should a.107 dynes b.not apply the brakes c.pump' the brakes d.push hard the brakes to lock the wheels e.push just hard enough to prevent slipping

Last Answer : e. push just hard enough to prevent slipping

2-3 days of menses slipping already a problem?

Description : Can you predict a problem if your period is a few days late?

Last Answer : If you are not taking contraception, it is normal. It can change so much due to food, weather, strain. If you are 1-2 weeks late, you can suspect someone else and go to your gynecologist.

Slipping of chiasmata towards the ends of bivalent is called :-

Description : Slipping of chiasmata towards the ends of bivalent is called :-

Last Answer : Slipping of chiasmata towards the ends of bivalent is called :- A. Terminalisation B. Diakinesis C. Interkinesis D. Heteropycnosis

What are loose material in layers slipping down a slope?

Description : What are loose material in layers slipping down a slope?

Last Answer : Feel Free to Answer

What sort if surface should a ramp have to prevent people slipping?

Description : What sort if surface should a ramp have to prevent people slipping?

Last Answer : Need answer

Can you fix an office chair that keeps slipping down on it's cylinder?

Description : Can you fix an office chair that keeps slipping down on it's cylinder?

Last Answer : You would have to change the cylinder, look up how much is worth according to your model. It might be worth just buying a new chair.

A person climbing a hill bends forward in order to (a) avoid slipping (b) increase speed (c) reduce fatigue (d) increase stability

Description : A person climbing a hill bends forward in order to (a) avoid slipping (b) increase speed (c) reduce fatigue (d) increase stability

Last Answer : Ans:(d)

Resistance to the vibrations is known as A. Whipping B. Slipping C. Damping D. Underdamping

Description : Resistance to the vibrations is known as A. Whipping B. Slipping C. Damping D. Underdamping

Last Answer : C. Damping

In the equation of virtual work, following force is neglected (A) Reaction of any smooth surface with which the body is in contact (B) Reaction of a rough surface of a body which rolls on it without slipping (C) Reaction at a point or an axis, fixed in space, around which a body is constrained to turn (D) All of the above

Description : In the equation of virtual work, following force is neglected (A) Reaction of any smooth surface with which the body is in contact (B) Reaction of a rough surface of a body which rolls on it without ... an axis, fixed in space, around which a body is constrained to turn (D) All of the above

Last Answer : (D) All of the above

The walls which are necessary on the hill side of roadway where earth has to be retained from slipping is known as (A) Retaining wall (B) Breast wall (C) Parapet wall (D) None of the above

Description : The walls which are necessary on the hill side of roadway where earth has to be retained from slipping is known as (A) Retaining wall (B) Breast wall (C) Parapet wall (D) None of the above

Last Answer : Answer: Option B

A wheeled tractor hauling unit is working on firm earth. The total loaded weight distribution of this unit is: Drive wheels: 25000 kg Scraper wheels: 10000 kg If the coefficient of traction for wheeled tractor on firm earth is 0.5, the rimpull which this tractor can exert without slipping is (A) 10000 kg (B) 12500 kg (C) 22500 kg (D) 5000 kg

Description : A wheeled tractor hauling unit is working on firm earth. The total loaded weight distribution of this unit is: Drive wheels: 25000 kg Scraper wheels: 10000 kg If the coefficient of traction for wheeled tractor on firm ... without slipping is (A) 10000 kg (B) 12500 kg (C) 22500 kg (D) 5000 kg

Last Answer : (B) 12500 kg

What Are The Reasons For Slipping Of Belt?

Description : What Are The Reasons For Slipping Of Belt?

Last Answer :  The belt is loosely fitted.  Overloading on belt drive.  Misalignment of pulleys.

Ball "A" ROLLS down an inclined plane without slipping. An identical ball, Ball "B", SLIDES down the same inclined plane without rolling. Which of the following statements is true? w) Ball "A" has more kinetic energy x) Ball "B" has more kinetic energy y) their kinetic energies are the same z) their rotational kinetic energies are equal just after release

Description : Ball "A" ROLLS down an inclined plane without slipping. An identical ball, Ball "B", SLIDES down the same inclined plane without rolling. Which of the following statements is true? w) Ball ... y) their kinetic energies are the same z) their rotational kinetic energies are equal just after release  

Last Answer : ANSWER: Y -- THEIR KINETIC ENERGIES ARE THE SAME

One finds it more difficult to walk on ice than on a concrete road because (a) ice is soft and spongy whereas concrete is hard (b) the friction between the ice and the feet is less than that between the concrete and the feet (c) there is more friction on ice than on concrete (d) it is not true

Description : One finds it more difficult to walk on ice than on a concrete road because (a) ice is soft and spongy whereas concrete is hard (b) the friction between the ice and the feet is less than that between the concrete and the feet (c) there is more friction on ice than on concrete (d) it is not true

Last Answer : Ans:(b)

The water from a hand pump is warm in winter because - (1) our body is cold in winter and the water appears to be warm (2) the temperature inside the Earth is higher than the atmospheric temperature (3) the pumping process causes friction which warms up the water (4) inside water comes out and absorbs heat from the environment

Description : The water from a hand pump is warm in winter because - (1) our body is cold in winter and the water appears to be warm (2) the temperature inside the Earth is higher than the atmospheric ... causes friction which warms up the water (4) inside water comes out and absorbs heat from the environment

Last Answer : (2) the temperature inside the Earth is higher than the atmospheric temperature

The water from a hand pump is warm in winter because - (1) our body is cold in winter and the water appears to be warm (2) the temperature inside the Earth is higher than the atmospheric temperature (3) the pumping process causes friction which warms up the water (4) inside water comes out and absorbs heat from the environment

Description : The water from a hand pump is warm in winter because - (1) our body is cold in winter and the water appears to be warm (2) the temperature inside the Earth is higher than the atmospheric ... causes friction which warms up the water (4) inside water comes out and absorbs heat from the environment

Last Answer : (2) the temperature inside the Earth is higher than the atmospheric temperature

The water from a hand pump is warm in winter because – (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric temperature (3) The pumping process causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Description : The water from a hand pump is warm in winter because - (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric ... causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Last Answer : (2) The temperature inside the earth is higher than the atmospheric temperature Explanation: In winter, the outside temperature is lower than that of water flowing out of the pump, and therefore, the ... the outside temperature is higher than the water of the pump, and therefore, it feels cold.

The water from a hand pump is warm in winter because – (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric temperature (3) The pumping process causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Description : The water from a hand pump is warm in winter because - (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric ... causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Last Answer : (2) The temperature inside the earth is higher than the atmospheric temperature Explanation: In winter, the outside temperature is lower than that of water flowing out of the pump, and therefore, the ... the outside temperature is higher than the water of the pump, and therefore, it feels cold.

The water from a hand pump is warm in winter because (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric temperature (3) The pumping process causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Description : The water from a hand pump is warm in winter because (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric ... causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Last Answer : The temperature inside the earth is higher than the atmospheric temperature