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What is difference between rolling friction sliding friction and static friction

Posted by Shauryaman Jaiswal 7 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

Friction is of three types:

Static friction: The maximum frictional force present between any two objects when one object just tends to move or slip over the surface of the other object, is called static friction. In case of static friction, the object is actually not moving or sliding over the other object, it only tends to move or slide.
Sliding friction: The frictional force present when one object moves slowly or slides over the surface of another object, is known as sliding friction. Thus sliding friction comes into play when an object is sliding over another object. Since sliding friction is smaller than the static friction, it is easier to keep an object moving which is already in motion than to move the same object from rest. That is why, sliding friction is smaller than the static friction.
Rolling friction: When an object rolls over the surface of another object, the resistance to its motion is called rolling friction. Rolling friction is much less than sliding friction. Heavy machines can easily be moved from one place to another by placing round logs of wood under them and pushing with the force of hands.

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How long will atrain 120m long take to clear a platform 130m long if its speed is 50 km/hr

Posted by Gaurav Pandey 7 years, 4 months ago

CBSE > Class 08 > Mathematics

0 answers

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(a+b) (a+b)

Posted by Tushar Bhardwaj 7 years, 4 months ago

CBSE > Class 08 > Mathematics

1 answers

Kashish Bhambhani 7 years, 4 months ago

a2+b2 (a+b)whole2

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12345678+87654321=?

Posted by Bhumika Biswas 7 years, 4 months ago

CBSE > Class 08 > Mathematics

2 answers

Khushi Nain 7 years, 4 months ago

99999999

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Neha Gurjar 7 years, 4 months ago

99999999

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article on topic ' girl child and schooling' in three paragraphs

Posted by Sophia Johal 5 years, 8 months ago

CBSE > Class 08 > English

0 answers

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Format of notice

Posted by Kumar Aditya 7 years, 4 months ago

CBSE > Class 08 > English

0 answers

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What are the evolutionary gift that the author mention?

Posted by Gaurav Chauhan 7 years, 4 months ago

CBSE > Class 08 > Other Subjects

1 answers

Manish Kumar 7 years, 4 months ago

Maths ke chapter 2ke answers

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Marathi lesson no 5 question answer

Posted by Vaibhav Pawar 7 years, 4 months ago

CBSE > Class 08 > Other Subjects

0 answers

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What is calorific value in chapter coal and petroleum

Posted by Mannat Singh 7 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Sheetal Sastiya 7 years, 4 months ago

Name the two factors from which we need to protect the crop

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Sonali Aggarwal 7 years, 4 months ago

The amount of energy produced by the complete combustion of a material or fuel is known as calorific value.Measured in units of energy per amount of material, e.g. kJ/kg.

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Meaning of sanskrit chapter (6)

Posted by Rishabh Tiwari 7 years, 4 months ago

CBSE > Class 08 > Other Subjects

0 answers

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What is pie

Posted by Priya Oviya 5 years, 8 months ago

CBSE > Class 08 > Mathematics

4 answers

Khushi Nain 7 years, 4 months ago

In maths pie is a symbol which we use to represent 22/7.

1Thank You

Pari Upadhyay 7 years, 4 months ago

Pie is a circular shape food

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Neha Gurjar 7 years, 4 months ago

In mathematics pie is a symbol of 22/7

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Vedansh Thakur 7 years, 4 months ago

A pie is a baked dish of fruit or meat and vegetables typically with a top and base of pastry

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Reported speech of-mother said ,"sania please give me a glass of water"

Posted by Bhumika Madan 7 years, 4 months ago

CBSE > Class 08 > English

0 answers

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If we give pepsin in the medicine for controlling virus then what virus control

Posted by S A 7 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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This is a good

Posted by Anas Saifi 7 years, 4 months ago

CBSE > Class 08 > हिंदी

1 answers

Khushi Nain 7 years, 4 months ago

What do you want to ask??

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5t+3-6x=3t

Posted by Shalin Pandya 7 years, 4 months ago

CBSE > Class 08 > Mathematics

0 answers

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1-4=

Posted by Sudharshan Datt 7 years, 4 months ago

CBSE > Class 08 > Mathematics

5 answers

Kashish Bhambhani 7 years, 4 months ago

-3

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Kritika Gupta 7 years, 4 months ago

-3

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Priyankaa Ravisankar 7 years, 4 months ago

-3

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Ankit Sharma 7 years, 4 months ago

-3

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Kartik Sarswat 7 years, 4 months ago

-3

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Can a

Posted by Devraj Sinha 7 years, 4 months ago

CBSE > Class 08 > Mathematics

0 answers

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What is a square??

Posted by Parwinder Singh 7 years, 4 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 7 years, 4 months ago

The square of a number is that number ‘raised to power 2’.

The square of a number is obtained by multiplying the number by itself.

For example 4 x 4 = 16 = 4²

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Write the to prepare prepare of the two integer whose number is 0

Posted by Neetu Sharma 7 years, 4 months ago

CBSE > Class 08 > Other Subjects

0 answers

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Why wheel of car and bas heavier than wheel of car and scotter

Posted by Dev Dev 7 years, 4 months ago

CBSE > Class 08 > Science

1 answers

S A 7 years, 4 months ago

Wheel of a car and scooter takes place small frictional force and wheel of bus are heavier because heavier wheel have more frictional force and controlled moving bus

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Which mediciane is used to remove weedicides

Posted by Ekansh Ruhela Rajput 7 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 4 months ago

Weeds are unwanted plants growing among wanted crops and compete with crop plants for sunlight, nutrients, water etc. Weedicides are the chemicals which are sprayed over field to get rid of weeds. They will not show any effect on crop plants. Two popularly used weedicides are 2,4-D Ethyl ester, Neem extract, Glyphosate etc.

3Thank You

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What is work

Posted by Ashfaq Maniyar 7 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Sonali Aggarwal 7 years, 4 months ago

A force is said to do work if, when acting, there is a displacement of the point of application in the direction of the force.

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Table of 16

Posted by Reena Bhatt 7 years, 4 months ago

CBSE > Class 08 > Mathematics

4 answers

Tiksha Gupta 7 years, 4 months ago

16x1=16 16x2=32 16x3=48 16x4=64 16x5=80 16x6=96 16x7=112 16x8=128 16x9=144 16x10=160

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Kashish Bhambhani 7 years, 4 months ago

16x1=16

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Dev Tera Yaar Jaat☢️ 7 years, 4 months ago

21 ki jagah 32

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Dev Tera Yaar Jaat☢️ 7 years, 4 months ago

16,21,48,64,80,96,112,128,144,160

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Name two metalloides

Posted by Arijit Pradhan 7 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Shyam Patel 7 years, 4 months ago

Silicon and Boron

4Thank You

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Which crop are grown in summer season

Posted by Tanu Dubey 7 years, 4 months ago

CBSE > Class 08 > Science

3 answers

Yash Tiwari 7 years, 4 months ago

Summer season in india is mainly from april to june so indian farmers mainly left their land to retain the nutrients for the season of kharif crops

2Thank You

Kashish Bhambhani 7 years, 4 months ago

Rabi crops

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Ved .. 7 years, 4 months ago

Rabi crop

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Report on charter act of 1853. Which include introduction ,prevention of charter act ,feature of charter act

Posted by Mariyam Sheikh 7 years, 4 months ago

CBSE > Class 08 > Social Science

0 answers

ANSWER

Ch 6

Posted by Ayush Ayush 7 years, 4 months ago

CBSE > Class 08 > Mathematics

0 answers

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Are you a mental

Posted by Sagar Gogoi 7 years, 4 months ago

CBSE > Class 08 > Other Subjects

1 answers

Richa Prashar 7 years, 4 months ago

No i m not mental and stop asking these irrelevant questions

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52900 By long division method

Posted by Achint Sidana 7 years, 4 months ago

CBSE > Class 08 > Mathematics

0 answers

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In which year the tipu sultan died

Posted by Ashutosh Vaishya 7 years, 4 months ago

CBSE > Class 08 > Social Science

3 answers

Pari Upadhyay 7 years, 4 months ago

Tipu sultan was died in 1799

1Thank You

Sonali Aggarwal 7 years, 4 months ago

Tipu Sultan died defending his capital of Serirangapatnam on 4th May 1799.Mysore was placed under the former ruling dynasty of the Wodeyars and a subsidiary alliance was imposed on the state.

1Thank You

Mariyam Sheikh 7 years, 4 months ago

1799- TIPU SULTAN WAS KILLED

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