Explanation and approach to the question was correct but at 13:24 you plugged in the wrong numbers. it should be 147(4) + 638(2) = FN1(8) and FN1 would be equal to 233 N and not 356 N
@nareshbohara4727
7 жыл бұрын
like the way u taught
@orielbernardez4590
4 жыл бұрын
this is true
@johnromelcamata3725
2 жыл бұрын
same answer I've got
@evelynkmuyemba
Жыл бұрын
Yes
@cesarfeliz9542
9 жыл бұрын
Didnt you switch the radius at the end. You said the painter has a force of 638N, And a radius of 2 meters. But you put 638(4) , which is the radius of the board.
@Jdoug305
2 жыл бұрын
Why isn’t there a normal force for the painter
@thetimtintin
10 жыл бұрын
i think the last equation should be " (638)(2) + 147(4) = Fn1(8) shouldn't it? Since you are looking for the Torque force for the board (147N), the middle point/radius should be 4
@hahyoumakemelaugh
10 жыл бұрын
Yeah, I kept rewinding questioning my intelligence when I saw that mistake too
@Jdoug305
2 жыл бұрын
Why isn’t there a normal force for the painter
@peugeotmns
10 жыл бұрын
Excellent teaching. Now I can feel confident in solving more torque problems. Thanking you for your help. Michael.
@indudas2478
8 жыл бұрын
sir, in the second question where you multiplied 147 by 2, it should be 147 by 4 and eventually the value of F1 comes 233N and F2 comes 552N
@stevenning8702
7 жыл бұрын
Indu Das yup
@nicholassmall6409
8 жыл бұрын
Great video, but you made an error @13:24. it should be (147)(4)+(638)(2)=Fn1(8) Which Fn1 = 233.
@starboy7921
3 жыл бұрын
I am from 2021...btw ..Nice Explanation sir
@minglongqua7913
8 жыл бұрын
umm sir you mistakenly switch the force of the board with the force of the painter
@matthewlee2268
9 жыл бұрын
make sure for the applying the given in the solution it be 147(4) - (because the force of the board is 147 not 638, then 638(2) - (because the force of the painter is 638 not 147)
@Jdoug305
2 жыл бұрын
Why isn’t there a normal force for the painter
@fadsmfawopefaw
10 жыл бұрын
You, sir, are an incredible teacher. This is so easy now!
@ersag2728
11 жыл бұрын
I didn't get the same answer, I used a the other support as the pivot… and i got 522 for Fn2 and 233 for Fn1, I think you may have the wrong r for the weights of the painter and board?
@dinisrealm3240
10 жыл бұрын
You are dead right. He screwed up at the final stage
@josecisneros8915
10 жыл бұрын
is Fgb*rb (147)*(4) i got for Fn1=233 and for Fn2=552
@MrAngbarako
12 жыл бұрын
seems like youve interchanged the force of the painter to the force of the board in 13:25. Magnificent explanation, thank you sir!!!
@Tsar_Waddles
8 жыл бұрын
Good practice problems, but ya fucked up bad with the last problem
@tonyyan2541
9 жыл бұрын
AP Physics exam in an hour lolol, this helped a lot!!
@faisalhakami7617
8 жыл бұрын
There is something wrong! at 13:25 ,, you mixed between the two forces i mean Fgb and Fgp
@JesusMoreno-tb7zj
10 жыл бұрын
13:24 you did not stay consistent to the you variables FgB & FgP. You accidentally switched the values.
@sundarnaga362
2 жыл бұрын
r for painter and board have been switched in the actual calculation. it should be 638 (2) + 147 (4) = 8 F_N1
@johnyquach
9 жыл бұрын
uhh did u got the person and the board weight mix up at 13:26?
@williambryant1672
7 жыл бұрын
Holy fuck I love you. Saved me for my exam tomorrow.
@WhosTelvoe
7 жыл бұрын
Chill... why does it seem like your rushing
@romeosweeney8120
3 жыл бұрын
Right answer for the second torque problem should be Fn(1) = 233N & Fn(2) = 552 N. The calculations were correct, but he mixed up the distance from the pivot point to the different forces.
@Jdoug305
2 жыл бұрын
Why isn’t there a normal force for the painter
@jpsmali
11 жыл бұрын
isn't the Fgp supposed to be 637 not 638?
@xxforeverMac
7 жыл бұрын
omg you saved my life my teacher taught this for 2 weeks and i still didnt understand but you taught this in 15 minutes and now i understand
@GispyFighter3000
8 жыл бұрын
great video .. can you explain to me why the normal force is larger on the center of the board than Mg is thanks
@BiancaAguglia
5 ай бұрын
Very late reply, but here's how I understand it: the normal force is larger because it opposes the weight of the board *and* the weight of the painters. Remember that there is no normal force on each painter because the painters are part of the painters-beam system (which means normal forces from the beam on the painters are not shown).
@xxuexx
9 жыл бұрын
Great tutorial on Torque. Struggling to understand it with my book. But you explained it in such a simpler way than the book!! THANK YOU!
@keylaortega6700
6 жыл бұрын
Great explanation for solving torque. Regardless of the little math mistakes, the explanation was clear and straightforward!!!
@catladyAR
7 жыл бұрын
You are boss!!! Thank you, Thank you.......... Thank you.
@GilNormanPolon
Жыл бұрын
638N should be multiplied to 2m
@changeisgood-cm7jz
9 жыл бұрын
thank you so much !
@robertcornelius3514
2 жыл бұрын
Bahahahaha. Even these egg heads make mistakes.
@xonikkiecal
4 жыл бұрын
yea you plugged it in the wrong order
@austinco3718
8 жыл бұрын
so basically you separate the torques that are clockwise from the ones that are counter clockwise using the equal sign ---> (=) ?????? yes?!?!
@rosettabaird7749
2 жыл бұрын
Wow i am still soo lost sighhhhh
@mvanasimon5907
3 жыл бұрын
Where are you rushing my guy
@marccotter8915
Жыл бұрын
Great tutorial!! I reading and re-reading instructions, but this made it very understandable! Thank You!!!
@FredGaze
7 жыл бұрын
May I assume that the beam will be in the same position, for instance, at a certain inclination of some degrees, if I put two equal masses at the same distance of the pivot ? Or it will rotate to the horizontal position ? In this case, why it turns to zero inclination, if I put two equal forces? Shouldn't it keep at the same position, considering the fact that the beam are subject to the same torque?? Thanks.
@nileskeller7195
8 жыл бұрын
For FN1, the equation should be 638(2) + 147(4) = FN1.. The radius is just backwards
@josphellihsilak4588
7 жыл бұрын
KZitem and other online teaching services are increasingly showing how inadequate typical higher ed is.
@rababkhan6842
2 жыл бұрын
omg thank you i have been looking for ages for an explanation with beam weight its been a bloody month! thank you so much my assignment is due next week
@skuoll
10 жыл бұрын
Explanation was correct, but you plugged in the wrong numbers at 13:20.
@teachingofhimalaya6491
10 жыл бұрын
This make very easier to study..... I I can give for all teacher I heartily thankx.......
@TheNerubi0690
3 жыл бұрын
thank you!!
@michaelangelobaldoza2712
3 жыл бұрын
Don't get it
@mahransakhr
7 жыл бұрын
He explained very nice at the end it was a honest mistake so stop commenting about that
@jatinderkumar9605
6 жыл бұрын
The difficulty I have is that the 5 horsepower motor can run the shaft of how many kilograms
@tangerin511
2 жыл бұрын
THANK YOU
@VarynDEE33t
8 жыл бұрын
When you conjugate a verb like "estar", does it become estará or estaría in the conditional?
@monisscience4958
8 жыл бұрын
"Their"
@dehiaalrikabi7430
11 жыл бұрын
At 13:26 i believe you mixed up the forces between the painter and the board. Or maybe i am wrong?
@marklandau365
7 жыл бұрын
great stuff. thnky!!!
@EsimanzonzoNewsChannel
8 жыл бұрын
no i s not clear
@ukidding
7 жыл бұрын
Force of N1= 233N as others have pointed out
@aymanabdelhakimabdelghany7372
6 жыл бұрын
at 6;58 ,why the solution is wrong
@stronklytyped
11 жыл бұрын
Good video, you made a little mistake though. At 9:53 The torque caused by weight of painter is counter clockwise, and the second normal force will cause a clockwise torque. It was a tiny booboo. Good work!
@Conor2hotty
9 жыл бұрын
How does Fgboard = 50N?
@VIK96T
9 жыл бұрын
Conor Murray It was stated in the question that the see-saw was 50N. If it was grams or a similar unit then you would multiply it by gravity to find N.
@Conor2hotty
9 жыл бұрын
VIK96T reply 2 months after my exam but thanks anyway! I passed the exam btw ;)
@ridhimadan1449
8 жыл бұрын
At 12:06,how do you know which forces will move the board clockwise and which will move it counterclockwise ?
@carultch
2 жыл бұрын
Right hand rule. Point your pointer finger from the pivot to the point the force is applied, and point your middle finger in the direction of the force. The thumb points in the direction of torque. By convention, torque is assigned to be in the direction that a threaded fastener would translate along the axis of the bolt, while subject to that torque. This is because torque is r cross F, and the right hand rule yields the direction of the torque. Torque will point out of the page if it would cause a CCW rotation, and in to the page if it will cause a CW rotation.
@mr6462
9 жыл бұрын
Great Video! this truly helps me a lot with my concepts about torque :) Thank you for making such an informational video!
@WishedForWishes
8 жыл бұрын
for the last one, aren't they all torque'ing in the clock-wise direction?
@indudas2478
8 жыл бұрын
no cuz u use the direction that the force is pointing at...when u use f1 as a pivot u can see that f2 is acting in the opposite direction..trace the force with your finger and go in th direction of the arrow...u eventually find that the direction is opposite to ur pivot
@christopherbeluska4272
9 жыл бұрын
Great video! I especially liked the step-by-step slide.
@joshuapionelo2426
9 жыл бұрын
he switched the radius of the board and the painter
@Bakugantsuvai1
12 жыл бұрын
Oh now I see why longer pens are easier to spin now.
@setboy1
10 жыл бұрын
thank you. That has answered some questions
@dfla5472
2 жыл бұрын
10:40
@Jdoug305
2 жыл бұрын
Why isn’t there a normal force for the painter
@TheZukutotofu
10 жыл бұрын
this was really helpful! thank you so much!
@pokemeslayer
7 жыл бұрын
I just want to say astrology is real.
@ernesthemingway4299
9 жыл бұрын
jeez..slow down will yah??
@xrisku
6 жыл бұрын
too fast. need to slow down a bit.
@jemappellelanoosh1743
10 жыл бұрын
Thanks for the great explanation :)
@suramyashalvi8132
8 жыл бұрын
wrong torque spelling
@janinedsouza8280
9 жыл бұрын
this was so helpful! so much more helpful than my prof!
@michaelbassi9843
11 жыл бұрын
Brilliantly explained! we want more!
@nileskeller7195
8 жыл бұрын
their* center of mass
@saltedsandman
9 жыл бұрын
this was really helpful. thanks!
@MysticMD
11 жыл бұрын
Amazing thanks :)
@harsh909
9 жыл бұрын
Thanks very helpful
@angelceres25
10 жыл бұрын
this was really helpful. thank you:)
@ronnie_rolltide8302
9 жыл бұрын
gd video!!!thnks
@johnbalvin5401
11 жыл бұрын
yes...u r wrong
@alexanderhenry7718
9 жыл бұрын
slap dash
@haddadmj96
8 жыл бұрын
Awesome,thanks!
@dThineni
11 жыл бұрын
Doesn't the painter have a normal force, too?
@rupeshvermaxyz
5 жыл бұрын
dont consider force by system
@mehdiaraza5170
6 жыл бұрын
Thank you
@viveksaran3876
6 жыл бұрын
helpful stuff
@paulburger9904
9 жыл бұрын
great video :D
@nalinaya1424
9 жыл бұрын
while watching the video i fell asleep, . he talks too much! ! i was waiting for the equations, why not directly go to the point? the slide was good but you talk too much -.- .
@xxuexx
9 жыл бұрын
Kim JongIn I believe that one of the primary key points in understanding Torque is to conceptualize it in a visual way. He did a great job in helping me understand it so much better than my text book. He had to explain how and why you are putting a certain pivot point in a certain place. That's really the whole point of physics. You can just memorize the equations, you will not survive... Lol. (:
@billwindsor4224
7 жыл бұрын
+shawawong Great comment about learning Physics, I agree
@vitsalis
10 жыл бұрын
Thank you :)
@Dana_Dolly
9 жыл бұрын
Thank you!
@samlopez9661
6 жыл бұрын
oof
@Reivivus
11 жыл бұрын
I love you!
@bendover424
5 жыл бұрын
Dude you got the amount of newtons wrong for the painter it’s 637 not 638
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