Friction
Вставка
- Опубліковано 20 сер 2024
- 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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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 ... 😊
You are correct
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.
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
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
Thank you sir for clear explanation about friction ❤
You are welcome
The frictional force is 8N.
Therefore the applied force, 4N, is not sufficient to move the box.
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Thanks Benard! Great to hear you like our videos! Do share it with your friends!
It's clay in generals. Language .
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The answer is 8N
Really understood clearly the topic also enjoyed too....🤩🤩thanks sir for your support ❤❤❤
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Hi
Hello sir your explanation is very well
Love from Nepal❣️
Thank you so much 😀
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Glad it was helpful!
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Glad to hear that
Thanking you sir for your effective explanation.
You are most welcome
Why we should not used cos theta instead of tan theta to calculate angle of friction. Sir
Same doubt
Its flight of consistent i air.Height:gravity +force presere iniciated and de inicisted on road and air. Two diodes . ILclined end.
2
World best video ❤️
Your explanation,teaching is awesome sir. Thanks a lot and lot .....for your service sir.
Welcome
Thanks
4 newton is the force of friction for the question sir
Bestt teacher 😊
I like it sir and I understand well the concept of friction. Thanks for you sir😂❤
Great Video!!!
Thanks!
Law of flight inertia and clay friction is inverse to one other.
4
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Batery and temptatire is rule of a moving obstecle .(/@w of movement)
1
The way u taught ch friction now i don't have any doubt in this ch u r superb sirr thankyuu so muchh ❤
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Thanks. Glad it helped you
This helped me a lot when I was doing exams, Thanks! ❤❤
Nice way of teaching
Thanks for liking
Sir can you please upload vectors addition and subtraction.
We will definitely try to upload more videos soon!
Thank you sir
So wonderful topic
what is your name sir?
The force of friction between the floor and the block is 8N
nice video
Thanks
Can you suggest me a good science book for class 8 and 9
Wow so interesting
Glad you liked it
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
❤
Thanks a lot sir...ur way of explaining is inexpressible 🙏🙏.
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Your welcome! Courses for Class 11 are coming in the first week of January!
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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?
i like this teacher
Thanks
Force and mas remain gravited this state any build ups .
3 .
Well teaching
I understand friction Thank you
Thanks ☺️
Thank you sir I would like you to make a practical lecture on physics and chemistry Thank you sir
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Thanks sir tor explanation😊😊😊😊😊
Gud morning sir
Good morning
How are you sir 😊
I like your technic fo telling sir
thanks a lot for this amazing explanation! you deserve much respect!
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Thanks Siddharth!
Frictional force i.e the limiting friction is 8N
Thank you sir🙏❤
How to calculate coefficient of friction?
Very good sir
Hi sir
Sir , what is fluid friction ?
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Nice friction😊
And the answer is 8N
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The answer is 8n
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answer is 4N
5:06 hahah that sound
Sir question answer be 8 newton.
Happy birthday 🥳 🎊
I
8
4N
The frictional force is 8.0N
Your explanation, teaching is awesome sir.Thanks alot sending love ❤from Zambia
Sir I know you have made videos on the electricity but they are not enough they not have many things
❤
Glad you liked it!
6:17
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Sri or Sir?😢
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1st view...
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I got 8N
Is it correct
Amazing Video!
NO more friction to study this topic :)
Thanks
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Is the abs is 8N?
Where do you leave 🛤️🛖😂😂
Thanks for sharing and helping us to know more knowledge about science😇😇
I am abraham from ethiopia
Hello
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
What is the answer sir, I got 4N
4n
Sir when friction is constant how will we say our body in motion 😂😂😂
Thanks sir
Well understood 🙏💕
Thaank you ita was gajab explanation 😊😮
Sri?
❤😮😅 reply
8n
Tell in Telugu
Are you Vishwajeet's father sir
Sir please explain in Hindi 😢😢😢😢
16newtons