Friction and Limiting Equilibrium | ExamSolutions

Here I look at friction and limiting equilibrium of a particle.
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[@bruhmoment6567]

Perfectly explained. May the almighty bless you!

[@epicsamp95]

I always wondered how you draw everything, and write so neatly with the cursor? I assume it's one of those pads? where you control the mouse with like a pen?

[@the_crackin3610]

How are u

[@RobertBrownieJr]

@ExamSolutions i always watch your video's as soon as i see them on my subscription box. anything you have to post is interesting to me

[@spacedog101]

I adore you. May god bless you sir

[@RobertBrownieJr]

very clearly explained, fantastic tutoring as usual :)

[@martinhempston872]

How’s it going 11 years later mate?

[@mothgods]

excuse me sir, can u please make some tutorials on complex numbers for A level? thanks

[@ExamSolutions_Maths]

@littleblueleprecorn Cool - nice to get a comment so quickly, just put it up.

[@ExamSolutions_Maths]

If there is no acceleration in the line of friction, then yes.

[@sarangsuryawanshi7499]

Thank you very much sir

[@geoffphillips8183]

Great & clearly explained. _thanks. One question: does friction come into being due to Newton's 3rd law?

[@kaijss]

Yes

[@geoffphillips8183]

Hello Great vids, thanks. Please could you explain when or why F< (or equal to) miu x R.....I thought miu x R IS the friction force. Thanks.

[@roshannaidu13]

F is the force required to keep an object in equilibrium, and µsR gives you the max friction force that can be generated. So when F < µsR, the object is in equilibrium (static), when F = µsR, the object is still in equilibrium but it is on the verge of moving (impending motion), and when F > µsR, the object is moving (kinetic).

[@selena20cool]

This was really helpful! Thankyou

[@ibrahimrana3754]

I dont understand the definition of mu. What do you mean by two surfaces? So is mu just a fraction that tells you how rough a surface is?

[@pruthivip8217]

yea pretty much, its different for each two surfaces, if mu is really low then its slippy eg ice on ice or our synovial joints

[@stellaras1995]

Just one thing, μ is pronounced mi (Like the word "me") and not miou. It's kinda confusing as my native language is greek and I'm confused when you say miou :P

[@monsieurali8484]

He's not speaking Greek. And the official pronunciation of the letter μ in English is miu. You can check wiktionary or any other dictionary for that matter to see how it's pronounced.

[@FootyFeverTube7]

Its actually miu

[@moofficial420]

lol u can hear the clock ticking at the end of this video