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Minimum Force to Overcome Friction
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- čas přidán 5. 11. 2012
- Minimum Force to Overcome Friction.
In this video, there is a box on a horizontal floor. We find the minimum amount of force needed to get the box moving if the force is applied at an angle of 30 degree from the horizontal floor.
Spent all day trying to figure out a problem like this and this helped me finally solve it. Thank you!!!
The way you explain every minute possible thing of that sum makes you unusual.
That's what many professors miss actually.
Thanks bruh💯❤️❤️❤️❤️❤️❤️❤️
This was perfect. Thank you!
Thank you very much for your guidance. it has helped me a lot and I am grateful. once again thank you.
You are a wonderful person, not only did you help me pass calculus but now you will help me in physics. Thank you so much.
Thank you for the tutorial!
noh my gawd yassss!!!!!! I love you for this.
YES PHYSICS!!!!! You are awesome!
Thank you! Gave it a thumbs up :)
You should keep doing more physics tutorial things! You cover an amazing amount of calculus material, but your physics videos are few and far between. PS. This is just a suggestion, your videos are amazing!
Thanks a lot ! Great help 😉😉
you have fulfilled every engineer's dream !
I HAD NO IDEA YOU DID PHYSICS TOO!!!! I honestly use you're calculus videos and self teach at home because my teacher goes too fast, and i always thought if only patrick did physics...YES!
A man who doesn’t thank people doesn’t thank god, so thank you so much.
Its enriching !!do make more videos 😀
Have you made any videos including complex vector spaces and/or bra-ket notation?
You are AMAZING you just saved me
Patrick, can you pleaseee post videos that cover most of the AP Physics C syllabus!! You helped me pass AP Calculus AB! Thank You!
You saved my life, Thanks
Ok, so quick question: What is the amount of force needed to overcome the friction preventing me from NOT being able to walk outside of my Mansion get into my Bugatti & drive to my private jet?
suppose if i had a value of force and also the mass of the box in grams or kg and i wanted to find the minimum force required to move the box then would that minimum force be equal to limiting friction or would it be greater
thanks for your help
Hey, Patrick, can you do some videos about torque and static equilibrium?
I want to ask if the force applied to the block is horizontal to right, that means no inclined angle , how to calculate the force needed to move the block ?
Thank you,
can you do a vid on the minimum force for a car on a banked road to overcome friction? thanks
HOLY SHIT you have had physics vids this whole time?????
Isnt the normal force the samething as weight? WHy cant you plug in 100 N?
Could you do some problems that involve work, potential and kinetic energy, and momentum please
Thank you very much
I wish you complete uploading more physics videos
good explanation, thank youu
You are amazing 😉 ❤️
Would't pulling slightly upward on the box also deduct some of the friction?
thank u man
Thanks for the help. but are you not supposed to multiply the gravity forces as well. I got 32.4 N for the final Answer
Is the allowed ratio of equilibrium taken to constraints of interpretation of moment or is any amount that equals zero suplimentary to object set of measures. Such that an electric generator uses an amount of instance that coalesce's into an interuption of global dynamics...is that the degree😏
Wait why is the Fnetx = 0? Is this going in a constant speed ? Or is it at rest?
ily m8 thx :3
Thank you sir!
Thanks brother
Shouldn't normal force be exactly same as the 100N since N=mg
Is the magnitude of N not just the magnitude of the weight of the box, 100N? Since the box is not moving upwards or downwards
Awesome! You can do physics tooo! :D
What will b e the acceleration if the force is maintained tho?
Some energy problems (gravitational potential, elastic, etc.) would be cool if u did them too ^^ ur amazing at this stuff haha :D
Ok, so quick question: What is the amount of force needed to overcome the friction preventing me from NOT being able to walk outside of my Mansion get into my Bugatti & drive to my private jet?
how did u get 0.5???????
Thank yaaa. .! ^^
nice!
Thnkss for this video
when is the normal force not equal to a weight of an object?
Since the applied force has a component in the vertical direction. When you add up all of the vertical forces, the sum must be zero (or the box will accelerate upwards), which means the weight is equal to the normal force PLUS the component of the applied force in the vertical direction.
Ok, so quick question: What is the amount of force needed to overcome the friction preventing me from NOT being able to walk outside of my Mansion get into my Bugatti & drive to my private jet?
The force of static friction is an inequality statement not an equation. You assumed it was smaller than it equal to the left hand side.
GOD BLESS THIS HELPED ME SO MUCH , TEARS OF JOY STREAM DOWN MY FACE, HALLLLELUUUJAHHHH
Wrong. Now if angle is zero then force is 40N then how come at 30 deg angle force is less?
Is 40 N the ratio equilibrium of the condense of nature...
You from which country???? plz reply..... Plz visit India to have a physics class here.... We ate glad for that... Because I have a lot of suitability in ur studies....
🙏🙏🙏😉😉😉☺☺☺😁😁😁😅😅😅😚😚😚😊😊😊😊👍👍
Why is Your math channel not available????? WHYYYYYYYYY?!!?!!?!
physics!!! from patrickJMT. looks i will be getting an A on physics too!!! :D
Ok, so quick question: What is the amount of force needed to overcome the friction preventing me from NOT being able to walk outside of my Mansion get into my Bugatti & drive to my private jet?
why can you just assume that the forces in the x and y direction equal zero?
Because the box isn't moving. Not at moving = zero acceleration = equilibrium which means the net force in all directions = 0
Thanks bhai
Why do we multiply normal contact force with coefficient of static friction ..??
Because it's extra force which we needed to overcome motion
patrickJMT has stopped teaching himself physics three years ago !
I totally understood, but i did not see the reason why we did not equate normal force to 100N
Good question. It’s because the normal force is how hard the floor has to push back on the box. It’s what we commonly know as the weight of the object. It’s a force upward.
Because there’s a guy pulling the box at a 30 degree angle, that’s an additional force upward on the box (because sin (30) = .5, the upward force from the rope on the box is half of the guy’s total exerted pulling force).
So the guy is pulling the box up some, and that means that the floor doesn’t have to push up on the box as much. He’s taking some of the box’s weight off of the floor. Hence, the normal force is less than 100 N. The normal force ends up being 100 N minus however much the guy is pulling the box up (the vertical component of F).
If the guy happened to pull the box straight up, with a force of 100 N, so that he matched the downward pull of gravity, then the normal force on the box would equal 0 N. The guy’s upward pull would be taking the place of the normal force of the floor. Hope that helps!
Addendum: since the force of the pull ended up being 37.5 N, the vertical component of that force is, again, F*sin(30) = .5F = 18.75 N.
So the normal force on the box is now the force on the box due to gravity minus the upward pull on the box, or 100 N - 18.75 N = 81.25 N.
Guess u should have Changed your Name to PatrickJPT!!!!
Hehe... you liked your own video :P
You solved for MAX Value
Not Min value.....
No one noticed??
What is N?
Newtons.
Militant Pacifist is wrong. N is normal force
+Muhd Ihsan K Newtons
+Militant Pacifist normal reaction
1:48 Please Clarify Force preventing box from falling?
(y)
pop pop pop
Unnecessarily long video
you never EXPLAINED WHY you set the forces along the x direction to zero. STICK TO YOUR MATH tutorials pls and let the PHYSICISTS TEACH PHYSICS!
I have a PhD in Physics! so you better watch out to who you are defining physics! He sure knows how to explain Math to his audience but as a Physics, this is a HORRIBLE explanation on Newton's laws. I just felt absolutely sorry for that many views on this poor video.
*****
First off, I am not a male Physicist. I am a female college prof who was trying to find my class a link to the Newton's laws to post on their blackboard (blackboard is a website where my students can see their grades and get extra help). You are way too rude and obnoxious to talk to. Feeling so sorry for your personality. Physics is Math! LOL! I will write that on the board for my students tomorrow and see how much morning laughter I will get out of that! Physics is Math! LOL!!!! Ignorance kills, indeed!
Just letting you know that I received your comment and read it (if that's what you were looking for). Good luck!
N K You're a crazy bitch. I don't know one person that has been through college that types like an 11 year old.
Nice one! I am collecting these comments to send them to our psychology department. They are conducting a series of surveys on how people can be so rude on the internet knowing that they can type whatever they want and see if the same type of people would talk like that when meeting people in person. (You are obviously allowed to think I am an 11 yr old but you may also search that publication on PubMed in the next couple of years as well to see the results).
this is maximum force not minimum. thanks for wasting my time......