Thank you so much! This is a great help for me!😭❤️
@SkanCityAcademy_SirJohn6 күн бұрын
Most welcome. Which school do you attend?
@appledestroyer65134 ай бұрын
It is a very good video, very concise and informative. Most importantly, it is reliable.
@SkanCityAcademy_SirJohn4 ай бұрын
Aww thanks so so much. Where do you watch me from please?
@jpg-g6i23 күн бұрын
@@SkanCityAcademy_SirJohn I am watching from Australia much appreciated for the help
@samarbader276127 күн бұрын
Absolutely amazing, I hope get 100 in this course
@SkanCityAcademy_SirJohn27 күн бұрын
Thanks so so much
@NANOR_OB6 ай бұрын
Thank you for this one ...I'm gonna ace this midsem 🔥🔥🔥🔥
@SkanCityAcademy_SirJohn6 ай бұрын
Good....
@hbasyraff7973 Жыл бұрын
anti-clockwise shoould be positive right?if i'm not mistaken
@SkanCityAcademy_SirJohn Жыл бұрын
Its not fixed that anti-clockwise should be positive. You need to decide what you want to use and use apply. But if the resultant is negative it means the moment is taken in the opposite direction. Note, the resultant moment will always be same, changes will only be with regards to the direction
@hbasyraff7973 Жыл бұрын
@@SkanCityAcademy_SirJohn thanks for that explaination
@SkanCityAcademy_SirJohn Жыл бұрын
Youre welcome
@arinzeanthony7447 Жыл бұрын
@@SkanCityAcademy_SirJohn Thanks a lot for this, the sign convention is confusing.
@SkanCityAcademy_SirJohn Жыл бұрын
@@arinzeanthony7447 you are most welcome
@user-wi8kg7yl5x5 ай бұрын
Thank you so much this video made huge difference , however id like to know whether we should consider the signs when finding the components of each fore eg for the last question we solved , why wasnt the F2y component -519.62 , or do we just ignore the directions since we are working with moments ????
@SkanCityAcademy_SirJohn5 ай бұрын
Yes we don't consider it when finding the force components. It's rather done when finding the moment about the point.
@SaddySimwinga-rn4vj7 ай бұрын
Thanks 👍 so much... I have enjoyed it🎉🎉
@SkanCityAcademy_SirJohn7 ай бұрын
You are most welcome
@rolandcoclet7229 ай бұрын
good morning sir i was just wondering about signs of the moment, my teacher told me clockwise is negative but right now i m confused i would like to know if there is some exception or something like that . thank you and have a nice day.
@SkanCityAcademy_SirJohn9 ай бұрын
do not be confused about it. Clockwise can be negative or positive, either ways is correct. The issue is just choose a conversion for clockwise, ie if you take it to be negative, use that conversion throughout your solution, at the end if i use positive, our magnitude(answer) will be the same but different signs (- or +) If you have a negative resultant, it means the moment is rather in the opposite direction.
@samahazard1491 Жыл бұрын
Wawooo ❤ explanation is clear here, hope everybody could explain like u
@SkanCityAcademy_SirJohn Жыл бұрын
Aww
@user-gv5dd3bi5l Жыл бұрын
Thank you. Very understandable
@SkanCityAcademy_SirJohn Жыл бұрын
You are most welcome
@user-et5xw3dq1p10 ай бұрын
Well done sir. However for question 2 am wondering why the 500N isn’t sin45 when finding the distance, because it would be opposite to the angle and cos45 for 300N
@SkanCityAcademy_SirJohn10 ай бұрын
Did you move the 45 degrees from the reference angle to the other side. If you did, then you will have opposite of mine. But if it remains at where it has been placed in the question, then you have to get what I got.
@mgbelejohnboscochidera4553 Жыл бұрын
Nice one sir
@SkanCityAcademy_SirJohn Жыл бұрын
thanks so much. please where do you watch me from?
@abdallehassan3597 Жыл бұрын
Thank you so much
@SkanCityAcademy_SirJohn Жыл бұрын
You are welcome
@joelnamabwaza38965 ай бұрын
Thank you sir
@SkanCityAcademy_SirJohn5 ай бұрын
You are most welcome
@mikumatt11 ай бұрын
For #2, the Key in the book says 1.25 kNm, but I believe that’s because anti clockwise is suppose to be positive and clockwise is negative. Nevertheless helpful guide.
@SkanCityAcademy_SirJohn11 ай бұрын
The magnitude is what matters, as for the direction, it's on your preference
@sunusimuhammad9227 Жыл бұрын
Thank alot
@SkanCityAcademy_SirJohn Жыл бұрын
You are welcome
@FatawYakubu-9085 ай бұрын
Please does it mean that for the upward force the direction is anti clockwise and for the downward force the direction is clockwise
@SkanCityAcademy_SirJohn5 ай бұрын
Not necessarily, it depends on the point you are taking the moment about and also where the perpendicular distance falls, whether left or right
@FatawYakubu-9085 ай бұрын
Okay thanks 🙏
@SkanCityAcademy_SirJohn5 ай бұрын
@FatawYakubu-908 most welcme
@vicky3156 Жыл бұрын
Hello, please how do u know whether the direction for the forces should be clockwise or anticlockwise
@SkanCityAcademy_SirJohn Жыл бұрын
You need to made items to take the moment, force and perpendicular distance, so the force and where you have the perpendicular distance away from the line of action of the force determines the direction you must take.
@Hola-tx9fr Жыл бұрын
Hi teacher, thank you so much for your efforts. I just want to understand why in the second exercise, we did not project the forces onto the x and y axes like we did in the first and last examples.
@SkanCityAcademy_SirJohn Жыл бұрын
Aww, thanks so much for the words of encouragement, the reason why q2 looked different was that, the forces given were originally along either the x or y axes, so that makes it easy to just continue with the solution process, but for q1 and 3, the forces are at an angle with the x or y axes, meaning that that force is the resultant force having x and y components, hence we need to resolve in x and y before we continue with the solution
@Hola-tx9fr Жыл бұрын
@@SkanCityAcademy_SirJohn ok. Thank you teacher 😊
@SkanCityAcademy_SirJohn Жыл бұрын
You are most welcome. Thanks for watching
@magdalenapovanhu1478 Жыл бұрын
How do you know if the force is in the clockwise or anti clockwise moment??
@SkanCityAcademy_SirJohn Жыл бұрын
So first you note the point you need to take the moment about, next moment is force * perpendicular distance away from the point you are taking the moment about, so that will let you know if you will take it in the clockwise or anti clockwise direction.
@keptstudioL Жыл бұрын
please explain why you say that F1x corresponds with 4 and F1 corresponds with 5.
@SkanCityAcademy_SirJohn Жыл бұрын
This is because, F1x is parallel to 4, and F1 is also parallel to 5.
@MemorizeQuranEasy2 жыл бұрын
Thanks for your good 🙏
@SkanCityAcademy_SirJohn2 жыл бұрын
Youre welcome
@zubairiacademy Жыл бұрын
Assalam ala almushahideen almuslimeen Keif 7alkum
@michaelasilidjoe4862 Жыл бұрын
From the last eg. I didn't understand why you multiplied the f1x by 0.25
@SkanCityAcademy_SirJohn Жыл бұрын
tracing the line of action of F1x to the left, you can see it cuts the line passing through O, the perpendicular distance away from O is 0.25m
@michaelasilidjoe4862 Жыл бұрын
@@SkanCityAcademy_SirJohn Oh okay Thank you very much......
@SkanCityAcademy_SirJohn Жыл бұрын
@@michaelasilidjoe4862 you are welcome.. thanks for watching
@kiarancl Жыл бұрын
may i ask from what book are the examples from?
@SkanCityAcademy_SirJohn Жыл бұрын
Hibbeler statics
@kiarancl Жыл бұрын
@@SkanCityAcademy_SirJohn thank you! Great teaching
@SkanCityAcademy_SirJohn Жыл бұрын
Thank you very much
@ndzitsakile Жыл бұрын
On the second example why is the 300N acting in an anticlockwise direction and the 500N in the clockwise direction?
@SkanCityAcademy_SirJohn Жыл бұрын
no, its the other way round, check again and come back with your question. Thank you
@ndzitsakile Жыл бұрын
@@SkanCityAcademy_SirJohn what I want to understand is that how do we know if it's clockwise or anticlockwise
@SkanCityAcademy_SirJohn Жыл бұрын
So you just need to trace the line of action of the force, to cut or intersect the line of action of the point you want to take the moment about. Once you have the two, the moment will be the force x the perpendicular distance
@ioriyagami849411 ай бұрын
Hey sir Good afternoon do you have some videos related to this?
@SkanCityAcademy_SirJohn11 ай бұрын
Yes please, kindly check the playlist on basic mechanics if what you want is part of the list.
@ztrdyydjfufyfud48955 ай бұрын
first you took the force negative while its approving the ccw assumption that you made then you took fy with cosine while its clearly sin
@SkanCityAcademy_SirJohn5 ай бұрын
Kindly specify the question number so I clarify for you
@AnnahtuDauda-gk9xr Жыл бұрын
Ur diagram is always not clear how will we see the readings
@SkanCityAcademy_SirJohn Жыл бұрын
It's due to your data rate, try to select a high resolution on KZbin to see it clearly
@hashiraarts2856 ай бұрын
In ex. 3, why f2x=300N rotation is clockwise pls help
@SkanCityAcademy_SirJohn6 ай бұрын
Yes, it's has same direction as F1x, now the line of action of F2x if extended backward to he left is perpendicular to O. And you can only do that if you rotate in the clockwise direction
@martinLmaina Жыл бұрын
I think clockwise moment should be negative
@SkanCityAcademy_SirJohn Жыл бұрын
well you shouldnt think that, you can either choose clockwise moment to be negative or positive, the only thing is at the end the resultant moment should be the same, and the sign (whether + or -) indicates the direction of the resultant moment.
@user-gv6jm9yb9s6 ай бұрын
Pls why did you take Fx in the anticlockwise direction
@SkanCityAcademy_SirJohn6 ай бұрын
Please kindly start the time in the video or question number for easy reference
@danialexquande78133 ай бұрын
How come 2.5sin45 become 1.7 something while mine get 2.13
@SkanCityAcademy_SirJohn3 ай бұрын
It's simply because your calculator is in the radian mode, kindly put in the degree mode
@FatawYakubu-9085 ай бұрын
Please why did you not multiply the f3y by the distance 5m
@SkanCityAcademy_SirJohn5 ай бұрын
For which question please, and can you state the exact time in the video?
@FatawYakubu-9085 ай бұрын
First example 6mns 55sc
@SkanCityAcademy_SirJohn5 ай бұрын
@FatawYakubu-908 it's because the force f3, does not end on the 5m mark, we defined the distance from o to the force as a which is less than the d = 5
@FatawYakubu-9085 ай бұрын
@@SkanCityAcademy_SirJohn okay thanks
@ayamwenzdayz3551 Жыл бұрын
i think everyone here is used to clo0ckwise being negative so its kinda confusing
@SkanCityAcademy_SirJohn Жыл бұрын
Oh okay. I get it now. It's can be this or the other way round
@nanaboakyeanthony1696 Жыл бұрын
When resolving the F2, why didn't you take the angle from the positive x axis?
@SkanCityAcademy_SirJohn Жыл бұрын
Kindly state for which question.
@nanaboakyeanthony1696 Жыл бұрын
@@SkanCityAcademy_SirJohn The last question
@SkanCityAcademy_SirJohn Жыл бұрын
its actually the same thing, cos 60 = cos 300 = 0.5, looking at the direction where the force acts, the angle between the horizontal axis and the force is 60, hence its best to use that instead of going round in the anti-clockwise getting 300 degrees
@nanaboakyeanthony1696 Жыл бұрын
@@SkanCityAcademy_SirJohn Alright. Thanks
@SkanCityAcademy_SirJohn Жыл бұрын
You are welcome
@mostafasadeq3153 Жыл бұрын
My Thanks
@SkanCityAcademy_SirJohn Жыл бұрын
are you an egyptian?
@mostafasadeq3153 Жыл бұрын
@@SkanCityAcademy_SirJohn yeah , I'm an Egyptian
@SkanCityAcademy_SirJohn Жыл бұрын
Okay. Kindly message me on +233243084034 on WhatsApp.
@zubairiacademy Жыл бұрын
@@mostafasadeq3153 izayak ya basha inta amil eh
@zubairiacademy Жыл бұрын
@@mostafasadeq3153 sallim li 3la ahl misr
@abdallahally2863 Жыл бұрын
how anticlockwise is being 2 be negative
@SkanCityAcademy_SirJohn Жыл бұрын
It's not a standard. You just decide on your own which rotation should be positive or negative. I usually choose clockwise as positive and anti-clockwise as negative. You can do the opposite but in your final answer we should know the actual direction.
@realhappenings2433 Жыл бұрын
Please why was the distance about O of the 300N that
@SkanCityAcademy_SirJohn Жыл бұрын
For which question??
@dimospeaker6266 Жыл бұрын
it should not be +10kN? just wanna make sure
@SkanCityAcademy_SirJohn Жыл бұрын
Which question?
@user-tm8nu6ms2y Жыл бұрын
please i want to know if Ib=newton
@SkanCityAcademy_SirJohn Жыл бұрын
No, please. I changed from Ib to Newtons because we are mostly familiar with Newtons.
@moviereviews1915 Жыл бұрын
Can i get your email
@SkanCityAcademy_SirJohn Жыл бұрын
ansahjohnnyamekye@gmail.com
@ukwenyabenedict54289 ай бұрын
You didn’t really explain this anticlock wise and clockwise stuff🥲
@SkanCityAcademy_SirJohn9 ай бұрын
Really....
@hemmarajkanesan68819 ай бұрын
@@SkanCityAcademy_SirJohn sir can you do a separate video explaining clockwise and anticlockwise stuff please :) i still always get confused with that.
@SkanCityAcademy_SirJohn9 ай бұрын
@hemmarajkanesan6881 really, I will consider that, okay.
@hemmarajkanesan68819 ай бұрын
@@SkanCityAcademy_SirJohn thanks a lot sir. this really means a lot