Drawing Free-Body Diagrams With Examples

[@chidubemnwanisobi6037]

the best thing on free body diagram i've seen

[@PhysicsclassroomVideos]

Wow! Now that's what we like to hear. Thanks!

[@simoneiiii4817]

I know I'm 2 years late but thank u for making this video! U helped thousands of students pass their physics test!!

[@yvanaluvvs1963]

omggg valma student

[@simoneiiii4817]

@@yvanaluvvs1963 may nakahanap nanaman sakin HAHAHA

[@yvanaluvvs1963]

cramming sa 82 items quiz tomorrow 🥹

[@simoneiiii4817]

@@yvanaluvvs1963 Best of luck to youuuu!! Kaya mo yannn! Tiwala lang 🍀🍀🍀✨✨✨!!!

[@minamuramontashiki1703]

I have just been watching all your videos and you are literally the only person who can explain it well.

[@animalgamingsquad3155]

It helped me a lot, usually I feel sleepy watching vid tutorials but not this one this one is great

[@PhysicsclassroomVideos]

Wow! Never thought keeping someone awake was my strength. Glad to hear.

[@animalgamingsquad3155]

@@PhysicsclassroomVideos keep up the good work

[@Sankalpkumar767]

😮😮😮😮😮😮😮😮😮

[@greenred1174]

Thank you so much! I’ve been using the physics classroom website for so long and today I found out you had a KZbin channel! I’m not exaggerating when I say the only reason I didn’t give up physics is because of you. I lost all passion and thought I was just plain stupid for not getting it. My teachers frustrated me so much with how complicated everything was but you explained concepts in a way that made me question why I found it confusing in the first place! You somehow made learning physics fun and mind opening. I am so grateful to you for the resources you’ve put up. May God give you many blessings and a happy life!

[@PhysicsclassroomVideos]

Thank you. You made my day!

[@miningclash5593]

This really helps. You did a very good job at breaking down how to create this diagram in steps that were both concise and understandable. Much better than most other tutorials out there.

[@PhysicsclassroomVideos]

Glad you liked it.

[@adamal-hawwari6990]

2 years later and you helped me understand free body diagrams right before my midterm!! thanks so much

[@anjali3232]

Very well explained. Best video on free body diagrams on KZbin. My 10 year old son could understand the concept easily and can solve the numericals only because of your videos.

[@PhysicsclassroomVideos]

Wow! Never expected to be reaching 10 yr olds. Glad it helped.

[@ConnerThomson123]

Great refresher, very clear and concise.

[@jvanitt]

Love this! Usually, I can never find a useful video to study with! Thanks!

[@PhysicsclassroomVideos]

Hope you'll come back again.

[@zouraplayz]

I was cooked in my physics class til you came along you explain stuff in a way I understand.

[@cja12345]

greatest video I've seen. Need this for my MCAT exam 2025.... 520+ loading

[@mimitouat]

you have gained another subscriber. i am new to physics at first it was sound waves and grade 7 stuff and now it took another twisted turn and your the only one to help appreciate it!!

[@PhysicsclassroomVideos]

I'm glad it helped.

[@reenasingh5093]

Thank you sir. I have seen multiple videos, but couldn't understand what i found difficult. You have made it really easy to understand. Thank you.

[@PhysicsclassroomVideos]

I'm glad it helped.

[@maggieholder1107]

Thank you so much!! This saved me from many mental breakdowns this week 😂

[@Fearlessforthecross]

So useful!!! Wasn't able to understand this concept from my book, much clearer now!!! Thank u!!

[@PhysicsclassroomVideos]

Glad it was.

[@palancaalexrenzoy.9310]

Finally enlightened with FBDs. Thanks a lot!

[@PhysicsclassroomVideos]

Glad you found some light.

[@rileysherrard]

Thank you so much for this, this video really helped me to understand how to express the acceleration of an object through free body diagrams. You just earned a new sub!

[@0314naho]

My teacher is not teaching me well but this video helped a lot. Thanks

[@LanaDelReyLover927]

This is the best explanation

[@oluwatomibombata8834]

Love this video! Super Useful, Precise and Concise

[@PhysicsclassroomVideos]

Thanks for your kind words.

[@anthonycook2526]

Best video ever on science

[@KALUBAMWANZA-c4m]

And this is what my lecture failed to explain🫣 Thank you I feel like am already ready for my exams 😊

[@PhysicsclassroomVideos]

Happy to help!

[@marybethmitchell4826]

Not much out there about something so important in the standards! Thanks for this clear video!

[@aayangoverski3437]

Thank you so much. Excellent explanation

[@mamellomadiba5038]

Love these sir got full clarity from these ✊❤🎉

[@anasays589]

Very helpful.

[@divyatej18]

I really loved your explanation sir. Thank you

[@PhysicsclassroomVideos]

Glad it helped.

[@TheHomieOmi]

I’m ready for my quiz now!

[@PhysicsclassroomVideos]

I hope the quiz went well.

[@rayhanrizvi334]

on my playlist of helpful videos for physics

[@PhysicsclassroomVideos]

Yeah! I'm gad I made your playlist.

[@aayangoverski3437]

For example #5, is there supposed to be a force to the right since the car is moving rightward?

[@IDK-lz5kh]

up

[@IDK-lz5kh]

mhfkhfulg

[@charles-mattdykes348]

very helpful go jags!!!

[@PhysicsclassroomVideos]

Glad you think so!

[@curiousbiologist2577]

Thank you!!! Very helpful for physics !

[@PhysicsclassroomVideos]

That's good to hear! Come back again sometime and get more help.

[@dustinbell4334]

thats my type of diagram

[@thoughtless8073]

well you can have it, since it free body.

[@vinayaksharma8864]

Thank you sir for guiding me

[@s3zine342]

Thank you this was helpful

[@cassidydevries1504]

this really helped!

[@sandramoh1763]

thank you very much!!

[@opzxi7917]

What would the free body diagram be for a table with a book on it and the free body diagram for the Earth

[@rouven.t]

very good explained thank you

[@PhysicsclassroomVideos]

Thanks for the kind words.

[@carol8434]

so does it not matter if you draw friction at the contact surface or starting from the middle of the object? I am always confused on where the arrows should start, having seen different ways: middle of object, edge of object, at the contact surface? also, I would assume weight is best drawn from the middle (or wherever the centre of gravity is for the object) but I have also seen it from the bottom of the object? are there other forces where it doesnt matter whether it starts from the middle or the edge of the object?

[@PhysicsclassroomVideos]

If you're simply trying to calculate the net force and the acceleration, it doesn't matter. I'd draw them fro the center.

[@k5sisters]

so helpful!

[@PhysicsclassroomVideos]

👍

[@tanomauishane5369]

Nice explanation sir!

[@PhysicsclassroomVideos]

Thanks.

[@archanas7878]

In the example of a book hanging form the ceiling by a string, would there not be a third force(contact) between the ceiling and the string?

[@PhysicsclassroomVideos]

Nope. The force you've described is not exerted on the book. It is a force on the string.

[@archanas7878]

Gotit! Thanks!

[@ousmanfitness8132]

Thanks for this video. How about if someone jumps and then they land? This question would have an fbd for the person and an fbd for the ground I presume. The person fbd would only have the force that the ground acts upon them correct?

[@PhysicsclassroomVideos]

There would also be the down force of gravity.

[@noochy9091]

What about things like buoyancy and magnetic force?

[@Sophia-sp7eb]

Thank you 🙏🏽

[@PhysicsclassroomVideos]

You're welcome.

[@deemaeman8645]

Thank you

[@PhysicsclassroomVideos]

You're welcome.

[@nhojray_rivera]

Thanks a lot sir!

[@zeinabkamalinejad7608]

awesome thank youuuuuuuuu

[@青蛙呱呱-r5z]

helpful!

[@PhysicsclassroomVideos]

Glad you think so!

[@User-ft2ze]

I just studied from this video

[@morganbiskach5994]

is acceleration not considered its own force, its just calculated into the up and down forces (whatever they may be)?

[@PhysicsclassroomVideos]

Acceleration is NOT a force. The direction of the acceleration simply tells you the direction of the larger force. Other than that, you typically don't worry about acceleration when drawing the forces and deciding their type.

[@Viridian02]

Nice... thank you

[@PhysicsclassroomVideos]

You're welcome. Glad you found it helpful.

[@jaiyah23]

Edit: is the answer just an arror pointing downwards stating F grav? We were given a hw that's due in two and a half hours. The question is "A football is moving upwards towards its peak after having been 𝚋𝚘𝚘𝚝𝚎𝚍 by the punter. Neglect air resistance. Diagram the forces acting upon the football as it rises up towards its peak." Can you please help?

[@PhysicsclassroomVideos]

Anything else acting on the football?

[@erosboora7849]

thank you really helps a lot keep the great content coming

[@PhysicsclassroomVideos]

Thanks.

[@giuhms]

what if a person (acrobat) is performing using a rope attached to a ceiling?

[@PhysicsclassroomVideos]

Review the force types (Slide 4), the two big Qs (Slide 5) and the procedure (Slide 6). Every situation in the same way, using the info on Slides 4-6 and as demonstrated in the 5 examples

[@vinayaksharma8864]

Now physics easy for me

[@sanaamahmud4835]

ily Mr. H

[@wardplanning234]

tq so much

[@kaavyapriya6816]

In example 1 if we hav to draw fbd fr the table then hw can we draw normal force? Is it upwards or downwards? I mean the book's force on the table

[@fkem3055]

Normal Force is always perpendicular to the surface the object is in. No matter if that surface is horizontal, vertical, or slanted.

[@PhysicsclassroomVideos]

There would actually be two normal forces on the table: the book pushes down on the table and the floor pushes up on the table. These are both normal forces.

[@kaavyapriya6816]

@@PhysicsclassroomVideos thank u

[@kaavyapriya6816]

@@fkem3055 thanks

[@josephshaff5194]

Uh. What is the Mechanical Ground symbol called ? There one on the roof for a hanging chain.

[@cindycui7134]

no one has explained it as well as u

[@vinayaksharma8864]

❤️❤️❤️ from india

[@Chris-ng9zi]

In the second example of the book suspended from the ceiling by a string: What are the forces on the ceiling?

[@PhysicsclassroomVideos]

Don't know honestly as I would need to know how the ceiling is connected to its surroundings. But certainly there is a string pulling down on it. And if it is treated as the "free body", gravity pulls down on it. As for the up, I'd need more info. Curious, why do you ask?

[@glamouroki5169]

Thank youuuuuuu

[@PhysicsclassroomVideos]

You're welcome.

[@Name-cl5ud]

What if something wasn't pushed by a spring or pulled by a rope or pushed by a person and is still moving in a direction (right or left) at a constant speed

[@PhysicsclassroomVideos]

Balance of forces. Applied force to right. Friction force to the left.

[@Name-cl5ud]

@@PhysicsclassroomVideos Thank you

[@anthonyespinal9396]

why is air resistance not action upon all of the moving objects

[@PhysicsclassroomVideos]

Insightful question. Air resista ce indeed acts on all moving objects. But its size I s often so small thats its considered negligible at low speeds. That being said there's nothing wrong with adding a SMALL arrow opposite the motion and labeling it F-air.

[@guh-o6m]

nice

[@Shabar9191]

Wah

[@englishwithravi4590]

Thank you sir

[@PhysicsclassroomVideos]

Definitely welcome.

[@myshowTM]

"aseleration" ?

[@mysticalev0luti0n60]

I give up

[@jacobvaerst1300]

I’m still lost🤣

[@PhysicsclassroomVideos]

Sorry you're lost. Maybe you need a written version: www.physicsclassroom.com/class/newtlaws/Lesson-2/Drawing-Free-Body-Diagrams

[@suveans2228]

lil bro im not subscribing or liking

[@PhysicsclassroomVideos]

Drats! Not even a thank you?

[@michaelmannn8092]

POO

[@WendyRMaik]

THE BEST explanation on free body diagram ever thanks so much 🙏🏻🙏🏻🫡

[@PhysicsclassroomVideos]

Glad it was helpful!

[@frrahdina]

Thank you!