Understanding the Force of Friction Equation

[@chewy33099]

please never stop making videos

[@FlippingPhysics]

+Jesus Nolasco That's my plan.

[@chherryflavored]

you are seriously the best physics instructor i've ever encountered...

[@FlippingPhysics]

Wow. Thanks.

[@selimhassairi]

This was EXACTLY what I was looking for, thanks so much!

[@FlippingPhysics]

You are welcome. Glad to help you learn.

[@mohanrajasekar]

Fax

[@elvismulenga1643]

this is more than our expectations, i really love this thanks be to all participants in this

[@FlippingPhysics]

You are welcome. So glad to have helped you learn!

[@solvedproblems4u835]

Nicely done ... I liked the use of the book and the overlay of forces present ... and the socks.

[@FlippingPhysics]

Thanks. The socks took a lot of work.

[@ryanbutton8718]

Awesome video. Explained very nicely and at the perfect pace. Thanks a lot for the awesome physics videos! Keep up the brilliant work.

[@rocks813]

Learning the basics of physics has always been filled with "Uh N", but not in this crystal clear video. Thank you for this awesome explanation, Mr. P, and Happy New Year!

[@waelhosn4924]

a great video that answers the questions of every student. i did like the fact that you covered the whole chapter of friction, which made it so much easier for me. good job and keep it up.

[@FlippingPhysics]

I'm doing my best to keep it up. Thanks for your words of encouragement.

[@margorenee7542]

Thank you!! AP Physics 1 is kicking my butt lol but these help make concepts more clear!! ps love the hair !!

[@FlippingPhysics]

Glad to know I am helping you learn! I hope AP Physics 1 continues to become more clear for you.

[@manshitomar1956]

sir ur videos are amazing.......like learning from teacher with student's involvement its a great idea........

[@FlippingPhysics]

Thanks. Glad you are learning from it!

[@anastasiya9287]

This is an awesome video !!!

[@FlippingPhysics]

+Anastasiya Manuylova Thank you my dear. Glad to be able to help you learn.

[@lokwhytho]

this saved my life, thank you so much for your thorough explanation!!!

[@FlippingPhysics]

Hyperbole appreciated and you are welcome!!!

[@bruhnling33]

There are some beautiful people on KZbin; people who just love teaching and helping others, and wanna do so in the most fun, engaging, and efficient way possible, and use the platform that’ll give them the largest audience. This is one of those people. It’s honestly such an amazing thing, and I among many others are so grateful for their existence.

[@FlippingPhysics]

Thank you for your kind words. They mean a lot to me.

[@farhatmohammadi7224]

YOU ARE AWESOME! thank you so much!

[@FlippingPhysics]

You are so much welcome.

[@aryensujjan]

love you bro you are always helping had for my preparation

[@FlippingPhysics]

You are welcome. Glad to be a helping hand.

[@officialdieselstudios2251]

Thank you "Flipping Physics" this video has helped me to understand a little better on how to tell the difference between static and Kinetic Friction. Also on how to tell when the two change back and forth.

[@FlippingPhysics]

That is great. This video might help as well: www.flippingphysics.com/friction-problem.html

[@jajinfla]

this was sooooooooo helful

[@vidalizmartinez7650]

very entertaining and educational! Thanks!!

[@FlippingPhysics]

You are welcome!

[@iresharachchige9134]

some do you will have millions and billions of subscribers i feel that your explains are perfect keep doing you are doing great job

[@FlippingPhysics]

+iresh arachchige Some day. Thanks for the positive thoughts!

[@itsnzsaad]

That was really helpful. Love From Bangladesh.

[@FlippingPhysics]

You are welcome. I love knowing I can teach cross-continentally!

[@Percules0001]

You really put a lot of effort into making these videos :) Great job! Had a question, since you said Static friction is GREATER or MORE than the force of kinetic friction, but why does Static friction become zero?

[@FlippingPhysics]

+MidnightShadowYT The _Coefficient_ of Static Friction is greater than the _Coefficient_ of Kinetic Friction (for the two same interacting surfaces.) The _Force_ of Static Friction adjusts to attempt to keep the object from moving and can decrease to zero. So the _Force_ of Static Friction can be less than the _Force_ of Kinetic Friction. Be careful to notice the differences between the _Force_ of Friction and the _Coefficient_ of Friction. Make sense?

[@Percules0001]

Flipping Physics Oh, okay, sounds awesome! And gosh it feels so cool having the actual you message me :o

[@FlippingPhysics]

+MidnightShadowYT Ya know. I'm just a guy who makes videos... :-P

[@Percules0001]

Flipping Physics "Just a guy"? Your amazing! :o

[@maxpower400]

Great video! High in content at a good pace

[@FlippingPhysics]

+Robert Jones Thanks. I script everything beforehand to make sure the pace is good while keeping clarity.

[@rachpx1717]

This is amazing! Good job

[@FlippingPhysics]

Thanks and you are welcome!

[@kimberlyr2289]

Just curious, about how long does it take to produce these? From concept to post editing. Seems like a lot of effort goes into them. Much appreciated btw.

[@FlippingPhysics]

+Kimberly R I bet it will not come as a surprise to you that I made a video to answer this question. flippingphysics.com/making-a-video.html (you are not the first to ask)

[@droneystyle]

It's awesome. your lecture is awesome !!! Thank you.

[@FlippingPhysics]

+Jinu Seol You are welcome!!

[@Uncertaintycat]

Excellent video as always! However, you have "friction" misspelled in the given URL in the comments, so people can't get to the wonderful lecture notes. :)

[@FlippingPhysics]

Thanks. The link is now fixed.

[@aussie3851]

Quirky and creative.. fantastic video! Thankyou

[@FlippingPhysics]

You are welcome. Glad to help you learn!

[@p0p4]

So why does kinematic friction not get changed by the magnitude of the velocity?

[@winniewinnie7180]

Thank you so much i really needed this !

[@FlippingPhysics]

You are welcome. Glad to help!

[@ThePhysicsConnection]

Nice video! very entertaining and nice editing!

[@FlippingPhysics]

+The Physics Connection Thank you!

[@manshitomar1956]

sir I have few questions if u could explain them here that would be great

[@FlippingPhysics]

Don't know how to answer your questions when you don't ask them.... I would suggest starting with my videos, they are much better than answering questions than KZbin comments. www.flippingphysics.com/algebra.html#newton

[@bert221221]

Very very cool, great vid. Thanks

[@briankiprono4580]

great video it helped me a great deal

[@nancyroy3188]

I like your video bro this video is very useful for me 😁 I am from India 👍

[@teoscott1]

can you explain to me what happen in case of using a robotic hand of 5 fingers to hold an object? 4 fingers and 1 opposing thumb? Object is cylindrical with a know mass M And known static friction = Fs

[@TheTAWProductions]

So how and when do you switch a object from Kinetic to static

[@FlippingPhysics]

I think this should help: www.flippingphysics.com/friction-problem.html

[@kennethgreer]

Dude, great video!

[@FlippingPhysics]

+Kenneth Greer Thanks!

[@raisulawal9673]

Great......keep it up.

[@MexicanRoboticsEngineer]

GREAT VIDEO

[@memraobinna4218]

Thank you so much 🥰

[@mblphysics3735]

You cannot use the vector sign for these forces. They have different directions, therefore the vectors cannot be equal to each other (just their magnitudes).

[@FlippingPhysics]

Yes, I agree. That is a mistake. I wish KZbin allowed uploads of corrected versions of videos, however, they do not.

[@fabricea2697]

This is great! Khan academy is pretty limited when it comes to going into deeper physics concepts and this really helped! thank you.

[@FlippingPhysics]

Glad to help you out!

[@asadjawaid9438]

thsnks man,owe you one :D

[@scottpecorino6320]

The lesson is great. You implied but did not say when the book is not moving it is in equilibrium.

[@karynabeatriz5764]

This is my first time watching your videos and I quickly press the "subscribe" button. This is seriously wonderful, I was able to understand everything so clearly. Thank you so much!!

[@FlippingPhysics]

You are welcome. So glad to help!

[@redgiantwhitedwarf]

me too! I hit subscribe less than half way through the video and it was my first time watching one of your videos. Thank you so much!

[@FlippingPhysics]

You are welcome. Thanks for the subscription! (Likes would be lovely as well) 😇

[@gabrielbobmarley]

What if only part of the object is contact with the floor? I mean, the bottom surface of the block is not 100% in contact with the floor?

[@Forrealbeatss]

Thanks!!!

[@FlippingPhysics]

You are welcome!!!

[@aymankhedr2656]

شكرا يا أستاذ

[@FlippingPhysics]

على الرحب والسعة يا صديقي

[@aymankhedr2656]

@@FlippingPhysicsاريد حلقة عن الشغل المبذول وأخرى عن تحولات الطاقة، مع شكري وتقديري

[@aymankhedr2656]

it is nice to answer me in Arabic, thanks

[@FlippingPhysics]

All my videos about work and energy are here: www.flippingphysics.com/algebra.html#work Right now I have other topics I am concentrating on. (Sorry, however, I do not think it is a good idea to Google Translate this one to Arabic!)

[@mohammadedressrahimi1382]

that was amazing

[@michelebianchi7861]

Billy is going places ... not the other two though , the other two will end up living in their parents house basement xD

[@FlippingPhysics]

We will see...

[@shewitmisghina6948]

Excellent

[@DCee93]

nice work. Question... which one of your characters were you in highschool? lol

[@FlippingPhysics]

+Pat DeCesare Hmmm. Let's see, I was... - on the soccer team like Bobby. - in a terrible rock band like Bo. - in vocal jazz like Billy. - President of the Drafting Club like Billy. - the "Hero" in our melodrama like ...? - coifed with long hair like Bo. - generally clueless like Bobby. Does that clarify?

[@DCee93]

+Flipping Physics haha

[@pocholoenriquez6620]

Dude! do you even wash your clothes? :)more powers to you. youre sooooo great.

[@FlippingPhysics]

+Pocholo Enriquez Uh, what? I got so many powers.

[@jajinfla]

TXE

[@maxmarsh9938]

Very epic

[@treesattheriver]

awesome

[@FlippingPhysics]

Thanks

[@Mystical_mistonpawzz]

I have class with a couple of students like "Bo" No book, no supplies, always knows the answer. Jealousy.

[@FlippingPhysics]

Yep. I know how you feel.

[@wareeshanadeem3940]

the pair of socks of your students are pretty much messed up.cool school xD

[@agelepeter8704]

Wow sir

[@tomificationness]

this is wacky and I like it

[@FlippingPhysics]

love your comment. thanks.

[@osamaahmad3756]

thanks thnks thanks.

[@FlippingPhysics]

you are welcome.

[@samisiddiqi5411]

5:22 6:15

[@ezrapierce1233]

My God, what an intro😂

[@1p1p3p4p5]

This made me cringe so hard but it was helpful

[@FlippingPhysics]

As long as you are learning, I am fine with you cringing. So Cringe On!!

[@janziraniselvadas2334]

I am 8th watching this

[@29957fred]

are these 4 ppl the same person???

[@FlippingPhysics]

I would suggest watching this: flippingphysics.com/making-a-video.html

[@beingkashmiri145]

2 easy😎😬

[@user-mi6sb3oi8e]

Look good but the problem here that im not good enough in english to understand

[@ethwhale]

why do those guys all have such long hair man is this a new fad

[@haluushi2753]

I want him to be my teacher 😑😑😂

[@FlippingPhysics]

I am. Am I not teaching you right now?

[@thefamilysmiley6832]

Ok very confusing next

[@voicelessyeti8510]

Are you all the same people?

[@voicelessyeti8510]

Person

[@FlippingPhysics]

+Voiceless Yeti What do you think?

[@gerryboyp.7668]

Thanks a lot............ I love you even if you are ugly......

[@FlippingPhysics]

You are welcome?

[@ezrapierce1233]

My God, what an intro😂