Friction

Friction force explained in a simple and practical way!
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Friction is a force that opposes the relative motion or tendency of such motion of two surfaces in contact. It acts parallel to the surfaces and is caused by the irregularities present on the surfaces in contact.
There are three main types of friction: static friction, sliding (kinetic) friction, and rolling friction.
1. Static Friction is the force that opposes the initiation of motion between two surfaces that are in contact and at rest relative to each other.
Static friction prevents the object from moving even when a force is applied. It adjusts itself to be equal and opposite to the applied force until the force reaches a critical value, known as the limiting friction. Once this critical value is exceeded, the object starts moving.
2. Sliding or Kinetic Friction: Sliding friction, also known as kinetic friction, is the force that opposes the motion of two surfaces sliding past each other. Once an object overcomes static friction and starts moving, sliding friction comes into play. It is generally weaker than static friction and remains relatively constant as long as the surfaces continue to slide past each other.
3. Rolling Friction: Rolling friction is the force that resists the motion of a rolling object, such as a wheel or a ball, on a surface. Rolling friction is generally lower than sliding friction, making it easier for objects to roll than to slide. It occurs because the object deforms slightly at the point of contact with the surface, and this deformation creates resistance.
In summary, static friction prevents the initiation of motion, sliding friction opposes the motion of sliding surfaces, and rolling friction hinders the motion of a rolling object. Understanding these types of friction is crucial in various fields, from physics and engineering to everyday scenarios where friction plays a role in the movement of objects.
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[@rithizx]

HW : w= mg= N 2×10 = 20 N=> Nf Coefficient of static friction(mu) =0.4 fs = (mu)s× N = 0.4 × 20 = 8 N But, even the 4N is acting on the object but the fsmax will cancel the force because it is Self Adjusting Force and the force is the less than fsmax ... 😊

[@user-mq2zn8sc2z]

You are correct

[@priyankakotian2651]

I am really glad I found ur channel please keep making such videos now got friction into my head and heart answer to last question 8N.

[@Aditya__arya]

0

[@benardbanks7938]

Hi,am benard from Uganda am happy to join you

[@ManochaAcademy]

Thanks Benard! Great to hear you like our videos! Do share it with your friends!

[@arslansattar351]

It's clay in generals. Language .

[@niranjanninja1678]

Thank you sir for clear explanation about friction ❤

[@ManochaAcademy]

You are welcome

[@MAdciTy-v3e]

I think the answer would be 8N because-- M= 2 KG W= mg = 2 KG*10 m/s² = 20N Coefficient of static friction= 0.4 therefore, 0.4*20N= 8N

[@aritra1183]

Wrong, this is limiting force or f max so to move the block you need more than 8N force the force applied on the block is 4N since friction force is self adjusting it will adjust itself to 4N and cancel the force applied So the answer is 4N

[@user-hm5er4dn6w]

You are a blessing to most students who watches you💯, I thank God that I am of your KZbin follower ❤❤❤❤

[@ManochaAcademy]

Thanks for liking

[@adebayoadekunle1251]

The frictional force is 8N. Therefore the applied force, 4N, is not sufficient to move the box.

[@rohitshastry2007]

This is really a very helpful video. Concept is Crystal Clear.

[@ManochaAcademy]

Glad it was helpful!

[@ayushmondal8514]

Really understood clearly the topic also enjoyed too....🤩🤩thanks sir for your support ❤❤❤

[@tileshwarkashyap909]

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Hi

[@cholamwambula140]

This is most wonderful experience explanation, so I like it sir

[@ManochaAcademy]

Glad to hear that

[@sensei0001]

Sir , i am from mars , and your videos are just awesome 🎉❤

[@ShivanandBhandekari]

I am from pluto😂😂😂

[@ShivanandBhandekari]

I am from pluto😂😂😂😂😂

[@ChiranjiviSanapathi-et7rb]

Thank s sir ❤😊

[@kamalrajkhadka123]

Hello sir your explanation is very well Love from Nepal❣️

[@ManochaAcademy]

Thank you so much 😀

[@navaidsaquibshaikh2382]

Thanking you sir for your effective explanation.

[@ManochaAcademy]

You are most welcome

[@TThany]

I like it sir and I understand well the concept of friction. Thanks for you sir😂❤

[@user-kq5ft8sg3t]

Hi I'm Solomon Manyuot Mabor, from south Sudan am so glad for the work you have done ✅✅✅👍👍🎉🎉🎉.

[@ManochaAcademy]

Thanks. Glad it helped you

[@mgopal4927]

Your explanation,teaching is awesome sir. Thanks a lot and lot .....for your service sir.

[@ManochaAcademy]

Welcome

[@OmejeKingsley-vk3qz]

Thanks

[@user-hh5ez2wq6i]

Why we should not used cos theta instead of tan theta to calculate angle of friction. Sir

[@cubingprince8146]

Same doubt

[@user-bp4yf5tq7t]

The way u taught ch friction now i don't have any doubt in this ch u r superb sirr thankyuu so muchh ❤

[@user-pt8bq9ne2h]

4 newton is the force of friction for the question sir

[@alinazari4356]

World best video ❤️

[@sudhakarkashyap512]

Can you suggest me a good science book for class 8 and 9

[@ItsJustAurora.]

This helped me a lot when I was doing exams, Thanks! ❤❤

[@vijendran007]

Sir can you please upload vectors addition and subtraction.

[@ManochaAcademy]

We will definitely try to upload more videos soon!

[@vijendran007]

Thank you sir

[@ayushericekka651]

Great Video!!!

[@ManochaAcademy]

Thanks!

[@arslansattar351]

Batery and temptatire is rule of a moving obstecle .(/@w of movement)

[@arslansattar351]

1

[@arslansattar351]

Its flight of consistent i air.Height:gravity +force presere iniciated and de inicisted on road and air. Two diodes . ILclined end.

[@arslansattar351]

2

[@IkenazorOzioma]

The answer is 8N

[@roshnigupta1306]

Bestt teacher 😊

[@odokenneth3712]

Thank you sir I would like you to make a practical lecture on physics and chemistry Thank you sir

[@arslansattar351]

Law of flight inertia and clay friction is inverse to one other.

[@arslansattar351]

4

[@arslansattar351]

Bolts are pin apliers for race.break.clutch (pateren at control 14 feet )(28feet)$cale and compos (180 scale:1.3.0 compos:90 balance)

[@muhammadkhanmarwat3770]

Nice way of teaching

[@ManochaAcademy]

Thanks for liking

[@sriramulasreelekha2773]

In rolling friction 0.02 x10N/1m means in the final we get it's unit as N/m? But frictional force unit is N, how is it possible?

[@pintumukherjee5187]

Thanks a lot sir...ur way of explaining is inexpressible 🙏🙏. Please bring courses for 11 and 12 sir 😭🙏

[@ManochaAcademy]

Your welcome! Courses for Class 11 are coming in the first week of January!

[@pintumukherjee5187]

@@ManochaAcademy for 12 sir?

[@pintumukherjee5187]

@@ManochaAcademy pls launch courses for 12 also🙏🙏😭

[@arslansattar351]

Force and mas remain gravited this state any build ups .

[@arslansattar351]

3 .

[@GhatkuothBiel]

So wonderful topic

[@dinesha4525]

How to calculate coefficient of friction?

[@geometric3150]

nice video

[@ManochaAcademy]

Thanks

[@ujwal181]

what is your name sir?

[@Wankmen-g1j]

Good morning sir

[@rhan9717]

thanks a lot for this amazing explanation! you deserve much respect!

[@MohammedZulkifilu]

The force of friction between the floor and the block is 8N

[@ShadabRazi-cd9ip]

Sir , what is fluid friction ?

[@sunahangrai3601]

i like this teacher

[@ManochaAcademy]

Thanks

[@Salman_Hakro]

Sir want a video on exam preparation tips

[@SaudaSalim-r4z]

Well teaching

[@user-bn7yi9so5d]

I understand friction Thank you

[@user-br3qv7yr3d]

I like your technic fo telling sir

[@VishnuS-ht5qf]

Thanks sir tor explanation😊😊😊😊😊

[@cubingprince8146]

Can you upload more videos for class 11 and 12? If possible, do it as soon as possible

[@SantoshSharma-zr1kb]

Happy teacher's day

[@sarveshpatil1016]

you are best sir

[@ijeomatony7232]

Frictional force i.e the limiting friction is 8N

[@Bint_e_islam-s]

Sir g please basic statistics 😢❤😢❤😢❤

[@Muslim__960]

Yes, please sir 😢😢😢😢😢😢

[@AbdulRasheed-jq4jt]

Sir please make videos on ch electricity with experiments

[@FazilVijay-et9md]

Solution is here Given Ms=0.4 Mass=2kg Applied force=4N Find force of friction Soln. N=W W=Mg =2x10=20 Msmax=MsxN =0.4x20 =8N Hence we need to produce more than 8N.but the Applied force is only 4N ,thus the object can not be moved.And answer for question =8N

[@somtochukwutimothy]

❤

[@AshokKumar-ur2jf]

Very good sir

[@___________________________u2v]

Thanks ☺️

[@NyirendaMackness]

Your explanation, teaching is awesome sir.Thanks alot sending love ❤from Zambia

[@user-vp8iq2vj7e]

Gud morning sir

[@ManochaAcademy]

Good morning

[@user-vp8iq2vj7e]

How are you sir 😊

[@annetyebale6166]

Wow so interesting

[@ManochaAcademy]

Glad you liked it

[@AshokKumar-ur2jf]

Sir class 9th also exampler book question answer and complite preparation (from bihar)

[@VedanshYadav-wr2ds]

Answer is 4N

[@AbdulRasheed-jq4jt]

Sir I know you have made videos on the electricity but they are not enough they not have many things

[@Pragya_kashyap]

Thank you sir🙏❤

[@modesterasamoah]

hi sir i want to join ur class

[@siddharth......]

I'm first manocha sir 😁

[@ManochaAcademy]

Thanks Siddharth!

[@user-qt4cc7ou1t]

Sir, you are three much❤❤❤

[@cubingprince8146]

Is the abs is 8N?

[@highvoltexplorer]

Nice friction😊

[@amandeepkaurchahal3070]

When sir said fs max I heard ff max😅

[@sriritwikshastry9603]

Amazing Video! NO more friction to study this topic :)

[@ManochaAcademy]

Thanks

[@FUSHIDOZI]

5:06 hahah that sound

[@MBK_9ineT9]

I got 8N Is it correct

[@codewithaditya5857]

Sir question answer be 8 newton.

[@user-dv6ur2uq8e]

Hi sir

[@ashwinin4983]

the frictional force between the block and the floor is 4N, same as the applied force as the applied force is less than limiting frictional force

[@user-qv6ln4sv4v]

Thanks for sharing and helping us to know more knowledge about science😇😇

[@moturayomopelola4958]

What is the answer sir, I got 4N

[@manojkhatri1245]

Thaank you ita was gajab explanation 😊😮

[@Boxoun.]

Where do you leave 🛤️🛖😂😂

[@saminanasir7598]

6:17

[@eminentscholarsacademy0623]

The frictional force is 8.0N

[@user-zb6xj1vh3c]

I am abraham from ethiopia

[@ManochaAcademy]

Hello

[@Boxoun.]

Happy birthday 🥳 🎊 I

[@SaudaSalim-r4z]

And the answer is 8N

[@SreehaanChalla]

The answer is 8n

[@itsreallyrandom6331]

❤

[@ManochaAcademy]

Glad you liked it!

[@user-iz2ky1kn2s]

Are you Vishwajeet's father sir

[@BandameediAnjamma]

8

[@worddeedschool5660]

Good morning sri 🤣

[@ManochaAcademy]

Same to you

[@Sparkle...723]

Sri or Sir?😢

[@adityapaikraa]

Sir​@@Sparkle...723

[@legendsofspeed420]

FF max ❤

[@vivek_xo]

4N

[@surekhamaske6866]

Sri?

[@vibhavjee5788]

1st view...

[@ManochaAcademy]

Super! Thanks!

[@vibhavjee5788]

@@ManochaAcademy thankyou for replying sir your videos help me a lot!!!.

[@kartikmeena9688]

Sir please explain in Hindi 😢😢😢😢

[@user-fs4re3dc7n]

Thanks sir Well understood 🙏💕

[@ChiranjiviSanapathi-et7rb]

❤😮😅 reply