What is rolling friction? How does it arise?

What is rolling friction? How does it arise?
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What is rolling friction? How does it arise?
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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 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 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

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

It is easier to roll a barrel than to pull it because (a) the full weight of the barrel comes into play when it is pulled (b) rolling friction is much less than sliding friction (c) the surface area of the barrel in contact with the road is more in the case of pulling (d) of a reason other than those mentioned

Description : It is easier to roll a barrel than to pull it because (a) the full weight of the barrel comes into play when it is pulled (b) rolling friction is much less than sliding friction (c) the surface ... in contact with the road is more in the case of pulling (d) of a reason other than those mentioned

Last Answer : Ans:(b)

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.

The rolling contact bearings as compared to sliding contact bearings have (a) small overall dimensions (b) accuracy of shaft alignment (c) low starting and low running friction except at very high speeds (d) all the mentioned

Description : The rolling contact bearings as compared to sliding contact bearings have (a) small overall dimensions (b) accuracy of shaft alignment (c) low starting and low running friction except at very high speeds (d) all the mentioned

Last Answer : (d) all the mentioned

The maximum frictional force which comes into play when a body just begins to slide over another surface is called (A) Limiting friction (B) Sliding friction (C) Rolling friction (D) Kinematic friction

Description : The maximum frictional force which comes into play when a body just begins to slide over another surface is called (A) Limiting friction (B) Sliding friction (C) Rolling friction (D) Kinematic friction

Last Answer : (A) Limiting friction

Force ( including rolling resistance friction ) that acts upon the stabilising surfaces such landslide and sole of bottom are called a) Useful soil resistance b) Parasitic force d) Draft of implement. d) Pull of implement

Description : Force ( including rolling resistance friction ) that acts upon the stabilising surfaces such landslide and sole of bottom are called a) Useful soil resistance b) Parasitic force d) Draft of implement. d) Pull of implement

Last Answer : b) Parasitic force

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

Are there future geopolitical implications that arise from China's one child/forced abortion policy?

Description : Are there future geopolitical implications that arise from China's one child/forced abortion policy?

Last Answer : I’m sure there many men like this in the U.S., so we can just observe them for an idea lol.

What medical problems could arise in this hypothetical scenario (see details)?

Description : What medical problems could arise in this hypothetical scenario (see details)?

Last Answer : answer:This seems like a more appropriate question for someone who does piercing rather than a medical question. Don't forget to consider the thickness of the skin when figuring out the outer dimension of the ... the raised part that is supposed to be exposed? Feel free to PM me with more details.

How did consciousness arise from the brain?

Description : How did consciousness arise from the brain?

Last Answer : Define consciousness please.

How did the idea to start circumcising men or women arise?

Description : How did the idea to start circumcising men or women arise?

Last Answer : You can’t really compare the two, you know. Female circumcision is really more like castration.

What complications will arise from personal on-line data storage in the near future?

Description : What complications will arise from personal on-line data storage in the near future?

Last Answer : Because of concerns about that, I have not used any online options for storage or back-up. I am curious to know what people who do use them think.

Why does the need for the development of a region arise ? Give any three points in support of your answer. -Geography

Description : Why does the need for the development of a region arise ? Give any three points in support of your answer. -Geography

Last Answer : The development of a region is required to improve economic, social, political and environmental conditions of the society present in the region. The development helps to increase general productivity ... income, efficiency of a worker, elimination of poverty and improvement in quality of life.

How did the consumer movement arise out of the dissatisfaction of the consumers? Explain. -SST 10th

Description : How did the consumer movement arise out of the dissatisfaction of the consumers? Explain. -SST 10th

Last Answer : (i) For a long time, due to unjust and inequitable practices followed by sellers, consumers were extremely dissatisfied. There was no legal system available to consumers to protect them ... awareness among consumers. Hence, the dissatisfaction of consumers gave rise to the consumer movements.

When did the conflict arise between the Moderates and the Assertives? -SST 10th

Description : When did the conflict arise between the Moderates and the Assertives? -SST 10th

Last Answer : The conflict between the two came to the surface in the Congress session held in 1906.

When did the conflict arise between the Moderates and the Assertives? -SST 10th

Description : When did the conflict arise between the Moderates and the Assertives? -SST 10th

Last Answer : The conflict between the two came to the surface in the Congress session held in 1906.

What is the function of receptors in our body ? Think of situations where receptors do not work properly. What problems are likely to arise ? [AICBSE 2016] -Biology-10

Description : What is the function of receptors in our body ? Think of situations where receptors do not work properly. What problems are likely to arise ? [AICBSE 2016] -Biology-10

Last Answer : Receptors are specialised cells located in our sense organs like ear, nose, skin, tongue and eyes. The function of receptors is to detect information from the environment. For example, olfactory ... hands might get burn as the damaged receptor cannot perceive the external stimuli of heat and pain.

Who first showed that cells arise only from pre existing cells? -Biology

Description : Who first showed that cells arise only from pre existing cells? -Biology

Last Answer : answer:

What problems might arise from a system of government which entrusts all of the powers to govern in a single leader?

Description : What problems might arise from a system of government which entrusts all of the powers to govern in a single leader?

Last Answer : The rise of a Dictatorship.

When does inferiority complex arise in human beings ?

Description : When does inferiority complex arise in human beings ?

Last Answer : Inferiority is a feeling that reminds the victim of something inferior or inferior to others. It is sometimes born subconsciously ; However, when a person manifests it, he or she does some ... unconsciousness , failure to set specific goals, and lack of success in overcoming feelings of inferiority.

In what year did the Berlin problem arise ?

Description : In what year did the Berlin problem arise ?

Last Answer : The Berlin problem arose in 1948.

Under what conditions will the rainbow arise

Description : How come it's a rainbow only sometimes? When will it be created?

Last Answer : The sun must come out right after the rain. Then a rainbow is formed.

Analogous organs arise due to

Description : Analogous organs arise due to

Last Answer : Analogous organs arise due to A. Divergent evolution B. Artificial selection C. Genetic drift D. Convergent evolution

$ Tap root arises from the radicle of seed. ! Radical leaves arise from the reduced stem.

Description : $ Tap root arises from the radicle of seed. ! Radical leaves arise from the reduced stem.

Last Answer : $ Tap root arises from the radicle of seed. ! Radical leaves arise from the reduced stem. A. If both As ... R is wrong D. If both As and R are wrong.

$ Tap root system is that which arises from the radicle of seed. ! Adventitious roots can also arise from the radicle.

Description : $ Tap root system is that which arises from the radicle of seed. ! Adventitious roots can also arise from the radicle.

Last Answer : $ Tap root system is that which arises from the radicle of seed. ! Adventitious roots can also arise from ... is wrong D. If both As and R are wrong.

$ Rudolf Virchow was the first to propose that new cells arise only from the pre-existing cells. ! Dividing cells have a low content of DNA.

Description : $ Rudolf Virchow was the first to propose that new cells arise only from the pre-existing cells. ! Dividing cells have a low content of DNA.

Last Answer : $ Rudolf Virchow was the first to propose that new cells arise only from the pre-existing cells. ! Dividing ... wrong D. If both As and R are wrong.

Epithelial tissue are arise from :

Description : Epithelial tissue are arise from :

Last Answer : Epithelial tissue are arise from : A. Ectoderm B. Endoderm C. Mesoderm D. All the above

1. Structural unemployment arise due to ___________

Description : 1. Structural unemployment arise due to ___________

Last Answer : Complete the following statements: 1. Structural unemployment arise due to ___________ 2. ... in towns and cities are called as ___________

What problems that could arise from incorrect packaging and handling?

Description : What problems that could arise from incorrect packaging and handling?

Last Answer : Need answer

How did conflicts arise regarding states rights and the federal government?

Description : How did conflicts arise regarding states rights and the federal government?

Last Answer : Feel Free to Answer

Why Do Vacancies Arise in a business?

Description : Why Do Vacancies Arise in a business?

Last Answer : An expanding business may need to recruit more staff. Or, having got rid of certain staff, may need to employ a replacement. Covering for maternity leave, or short term seasonal work, may create temporary vacancies.

What type of cells did multi cellular organisms arise?

Description : What type of cells did multi cellular organisms arise?

Last Answer : Need answer

Why Do Vacancies Arise in a business?

Description : Why Do Vacancies Arise in a business?

Last Answer : An expanding business may need to recruit more staff. Or, having got rid of certain staff, may need to employ a replacement. Covering for maternity leave, or short term seasonal work, may create temporary vacancies.

What type of health problems arise from groin pain?

Description : What type of health problems arise from groin pain?

Last Answer : There are many serious problems that may arise from groin pain. Increased pain over time in the groin area could signify a STD (sexually transmitted disease).

Which of the following traits will help you to maintain composure if a potential conflict were to arise?

Description : Which of the following traits will help you to maintain composure if a potential conflict were to arise?

Last Answer : All of the above

What difficulties would arise if you define temperature in terms of density of water?

Description : What difficulties would arise if you define temperature in terms of density of water?

Last Answer : pata hota to ap sy q puchti babna Google rehmat ullah

Risks arise due to changes in Government policies are termed as a

Description : Risks arise due to changes in Government policies are termed as a

Last Answer : Ans. Institutional risk

Which of the following statement(s) is/are true concerning the effects of MOFS? a. Pulmonary dysfunction tends to arise early and may resolve within 7 to 10 days b. Unless the precipitating insult has prompted oliguric acute tubular necrosis, renal function tends to be maintained early in the course of MOFS c. Although hepatic dysfunction is common with MOFS, the GI tract plays little role in this process d. Intercurrent nosocomial infection, most commonly pulmonary, is a common complication providing a “second hit” to the patient

Description : Which of the following statement(s) is/are true concerning the effects of MOFS? a. Pulmonary dysfunction tends to arise early and may resolve within 7 to 10 days b. Unless the precipitating ... infection, most commonly pulmonary, is a common complication providing a second hit to the patient

Last Answer : Answer: a, b, d Pulmonary dysfunction typically arises early in the development of systemic inflammation and may represent mild relatively localized acute lung injury or it may be a prelude ... is marked by progressive rise in serum bilirubin levels after a latent period of several days

Which of the following can be said as the “Theory of Darwin”? (a) Survival of the fittest and struggle for existence (b) Weak and strong always maintain a fixed proportion (c) different species do not arise by genetic mutaion (d) None of these

Description : Which of the following can be said as the “Theory of Darwin”? (a) Survival of the fittest and struggle for existence (b) Weak and strong always maintain a fixed proportion (c) different species do not arise by genetic mutaion (d) None of these

Last Answer : Ans:(a)

Internal economies - (1) arise when there is expansion in an industry. (2) arise in an economy as it makes progress. (3) accrue to a firm when it expands its output. (4) arise when there is expansion in internal trade.

Description : Internal economies - (1) arise when there is expansion in an industry. (2) arise in an economy as it makes progress. (3) accrue to a firm when it expands its output. (4) arise when there is expansion in internal trade.

Last Answer : (1) arise when there is expansion in an industry. Explanation: Internal economies are those economies in production-those reductions in production costs-which accrue to the firm itself when it expands its ... of its own expansion independent of the size and expansion of the industry as a whole.

Economic rent does not arise when the supply of a factor unit is - (1) Perfectly inelastic (2) Perfectly elastic (3) Relatively elastic (4) Relatively inelastic

Description : Economic rent does not arise when the supply of a factor unit is - (1) Perfectly inelastic (2) Perfectly elastic (3) Relatively elastic (4) Relatively inelastic

Last Answer : (2) Perfectly elastic Explanation: Economic rent in the sense of surplus over transfer earnings arise when the supply of the factor units is less than perfectly elastic or not perfectly elastic. When ... , at a given price or remuneration, the entrepreneur can engage any number of factor units.

he non-expenditure costs which arise when the producing firm itself owns and supplies certain factors of production are - (1) Explicit costs (2) Original costs (3) Implicit costs (4) Replacement costs

Description : he non-expenditure costs which arise when the producing firm itself owns and supplies certain factors of production are - (1) Explicit costs (2) Original costs (3) Implicit costs (4) Replacement costs

Last Answer : (3) Implicit costs Explanation: In economics, an implicit is the opportunity cost equal to what a firm must give up in order to use factors which it neither purchases nor hires. It is ... instead of renting, selling or lending it. These are costs a business incurs without actually spending money.

Root Hairs arise from - (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis

Description : Root Hairs arise from - (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis

Last Answer : (3) Epidermis Explanation: Root hairs are tubular-shaped tipgrowing cells that arise from epidermal cells known as trichoblasts, behind the tips of young roots. Like all tip-growing cells, root ... the addition of cell wall precursors to the tip delivered by vesicles from the endomembrane system.

What type of defect arise when a solid is heated? Which physical property is affected by it and what way ?

Description : What type of defect arise when a solid is heated? Which physical property is affected by it and what way ?

Last Answer : Vacancy defect is created, it is because on heating some atoms leaved the lattice site completely also the density decreases.

What type of defect can arise when a solid is heated ? Which physical property is affected by this and in what way ?

Description : What type of defect can arise when a solid is heated ? Which physical property is affected by this and in what way ?

Last Answer : When a solid is heated vacancy defect arises. This is because on heating some atoms or ions leacve the lattice site completely some lattice sites are vacant. As a result of this defect the density of the substance decreases, because some atoms leave the structure completely.

Microsomes - From where do they arise?

Description : Microsomes are small spherical membranous vesicles with attached ribosomes. They sediment, during differential sedimentation, only in the late stages of a preparation when very high centrifugal velocities are used. They don’t appear in electronmicrographs of a cell. From where do they arise?

Last Answer : Fragments of endoplasmic reticulum are transformed from lipid bilayer sheets, with attached ribosomes, into spherical vesicles. This is a result of the homogenization used in preparing the samples and also the tendency of lipid bilayers to spontaneously reseal.