I just finished Dynamics and took the final exam last week, and you helped me a lot man. Thanks.
@QuestionSolutions
3 жыл бұрын
Glad to hear I helped :) I wish you the best in your future endeavors!
@QuestionSolutions
3 жыл бұрын
@@joeyGalileoHotto It is on my list to do, but it's on the bottom of it. 😅
@joeyGalileoHotto
3 жыл бұрын
@@QuestionSolutions got my final grade in dynamics, I got an A
@QuestionSolutions
3 жыл бұрын
@@joeyGalileoHotto WOHOOO!! That is really awesome. Such a thrill when you get super high marks :) Very well done!!!
@pure_ligma2387
2 жыл бұрын
@@joeyGalileoHotto damn. how did you study for it? Any tips or tricks? I'm currently reading hibbeler and only going through examples and preliminary and fundamental exercises and watching these videos. I have about 8 days left to study before the exam.
@kerenhappuch5605
Жыл бұрын
I love how he presents a whole subtopic in a few minutes 😊
@QuestionSolutions
Жыл бұрын
I hope it was helpful to you 🙂 I wish you the best with your studies, and keep up the good work!
@natte431
Жыл бұрын
too bad this is the last day before my final exam so this might be the last time i see ur statics playlist , the only issue i habe is that you shouldve made more honestly u deserve more !!!
@QuestionSolutions
Жыл бұрын
Thank you very much. Maybe in the future, there will be another playlist that can be helpful to you :)
@mahajaved207
3 жыл бұрын
You are the most underrated channel on youtube, glad I found you though!
@QuestionSolutions
3 жыл бұрын
Many thanks!
@ruannnnnnnnn28
3 жыл бұрын
thankyou so much , I asked for this video a while back and you made it , what a legend
@QuestionSolutions
3 жыл бұрын
:) You're very welcome!
@theazndonut1
3 жыл бұрын
Got so lucky to found your channel, taking my FE exam this week. where have you been during my undergrad years LOL
@QuestionSolutions
3 жыл бұрын
😅 Glad to hear they've been helpful. I wish you the best on your FE exam!
@muhammadhaseeb8961
3 жыл бұрын
absolutely loving the way of your teaching.
@QuestionSolutions
3 жыл бұрын
Thank you very much!
@georgemikhaiel2620
2 жыл бұрын
Your videos are amazing! My uni has a couple chapters after shear force on Dry Friction, Wedges and sipping/tipping...It would be awesome if you could make videos on those topics too!! Im coming back next semester to watch you Dynamics Playlist!!
@QuestionSolutions
2 жыл бұрын
Usually, first year courses don't cover those topics, which is why I skipped them for now. Over time, I will come back and fill those in for the statics playlist :)
@georgemikhaiel2620
2 жыл бұрын
@@QuestionSolutions that would be amazing! Thanks for all your efforts!
@natte431
Жыл бұрын
i really apreciate all the help u gave me this year i watched every single vedio on your playlist and i honestly dont know what i wouldve done without you!!! may god bless your heart and i will continue to recomend this vedio to all of my freinds and class {in the GC} also to future classes!!!
@QuestionSolutions
Жыл бұрын
Thank you very much for your very kind words. While I am sure these videos helped you out, most of it was all you and your hard work. Well done and I wish you the best with your future studies. :)
@natte431
Жыл бұрын
@@QuestionSolutions i wish i had money man :( if i wasn't in a 3rd world country i would definitely support you. The exam was decent (50%). Will you make more vedios anytime soon tho
@janecm6136
3 ай бұрын
YEHEY!!! Done with the A-Z statics video. Petition for Strength of Materials 💘💘
@QuestionSolutions
3 ай бұрын
Awesome job on finishing all the statics videos. Keep up the awesome work. Strength of materials is on my to-do list, though I am unsure when I will get to them :(
@janecm6136
3 ай бұрын
@@QuestionSolutions still looking forward to that sir
@kimbrodersen5075
9 ай бұрын
A little something for the algorithm, great video!
@QuestionSolutions
9 ай бұрын
Thank you very much! I really appreciate it.
@wt7146
3 жыл бұрын
Your channel is a life saver! I took my statics exam last week and I owe whatever grade I get to you! Do you think you would be able to do differential equations as well?
@QuestionSolutions
3 жыл бұрын
Glad to hear! I hope you did really well :) I will add differential equations to my list, though it probably won't get to the top for a bit. I'll do my best! 😅
@gwv8647
2 жыл бұрын
@@QuestionSolutions thanks for all your work, keep it up
@QuestionSolutions
2 жыл бұрын
@@gwv8647 Thank you :)
@ivansantiagopenaortiz4986
3 жыл бұрын
You've helped me a lot during this semester! Thanks a lot.
@QuestionSolutions
3 жыл бұрын
You're very welcome. Glad to hear it was successful. I hope you do amazingly in your future semesters.
@husnainhyder6713
2 жыл бұрын
Thank you For clearing my doubts 😌
@QuestionSolutions
2 жыл бұрын
Glad to hear it :)
@sairajgurav6680
2 жыл бұрын
Nicely explained!! Thanks
@QuestionSolutions
2 жыл бұрын
You're very welcome! Best wishes with your studies.
@zerilioner639
3 жыл бұрын
Hi, I have one math question: Two particles have positions at time t given by S1=4t-t^2 and S2=5t^2-t^3. Find the velocities V1 and V2 at the instant the accelerations of the two particles are equal.
@QuestionSolutions
3 жыл бұрын
Hi, I don't really solve problems like this because then I have to solve everyone's problems and it will take too long 😅 Your professor should have their own allocated office hours. Please use them, they are super helpful and most professors sit idly in their office waiting :)
@arindammandal9378
9 ай бұрын
Differentiate twice wrt t you get accelation as a function of time than equate them you will get required time .now first derivative wrt t you get respective velocities
@xanonymousx6014
3 жыл бұрын
I really appreciate your great work bunch thanks, and also if you can do fluid mechanics that will be awesome
@QuestionSolutions
3 жыл бұрын
I will add that to my list :)
@carlosnjiri3679
Жыл бұрын
am greatfull you really good at explaining.
@QuestionSolutions
Жыл бұрын
Thank you very much, I really appreciate it. Keep up the good work!
@JesusMartinez-zu3xl
2 жыл бұрын
this helped a lot! thank you
@QuestionSolutions
2 жыл бұрын
I'm glad this helped you. Best wishes with your studies!
@darrylcarter3691
3 жыл бұрын
I remember this useful in structural engineering
@QuestionSolutions
3 жыл бұрын
And very useful for dynamics 👍
@broz2308
2 жыл бұрын
Truly excellent videos man, big appreciation. My course of study uses the same book from hibbler too. Will you continue on other topics such as friction and center of gravity?
@QuestionSolutions
2 жыл бұрын
You're very welcome. I might continue the statics lessons in the future. I tried to cover as much first year material as possible. 👍
@broz2308
2 жыл бұрын
@@QuestionSolutions looking forward, take care.
@EconomicAnalysis-ch6ze
3 ай бұрын
Thanks 😊
@QuestionSolutions
3 ай бұрын
You're welcome!
@mountainyatri
2 жыл бұрын
This is very nice and informative video.....and ur voice 😁😁😁
@QuestionSolutions
2 жыл бұрын
Thank you, I am glad it was informative :)
@mountainyatri
2 жыл бұрын
@@QuestionSolutions actually I'm facing a lot problem in finding moment of inertia and solving all those questions...I I'm like good please help me bcz my entrance exam is coming.....pls help me through this....else u upload video of all the questions related to the topic...soon as possible It will be grateful ...
@QuestionSolutions
2 жыл бұрын
@@mountainyatri There aren't anymore videos to upload about this topic :( I covered everything required to solve for the mass moment of inertia. There are also other videos on youtube about the subject, maybe they can offer better insight for you? Sorry I couldn't be more helpful :(
@mountainyatri
2 жыл бұрын
@@QuestionSolutions no problem:-) ..this is much u can do.. I'll finalise my doubt and queries.. Thanks for ur genuine reply.
@QuestionSolutions
2 жыл бұрын
@@mountainyatri You're very welcome. Best wishes on your upcoming exam!
@HashemAljifri515
10 ай бұрын
I took this topic today in engineering dynamics, I took it in statics and physics 101 and currently taking it in mechanics for pure bending. and your explanation is wonderful, but this topic is tedious; cause there are different formulas for the same object in different axises :(. And finding inertia by integrating is a bit harder lol. I hate to say it but this topic is tough 😂
@QuestionSolutions
10 ай бұрын
It's definitely on the more difficult side of things for students, especially if they need to do integral. But as with most topics, the more problems you solve, the easier it gets. You got this! Keep up the great work and do your best :)
@hummustahina5429
6 ай бұрын
moment of inertia of last part of the thin plate must be 1/12m(a^2+b^2) since we want it in the middle of the plate right? what you did is getting the inertia on a side
@QuestionSolutions
6 ай бұрын
We want it about the y-axis, not the middle.
@SahistaNaaz-fb5ce
Ай бұрын
Sir it means that if we are finding the moment of mass in x axis then moment of mass of y axis wrt x axis will be zero and same goes on y axis ?
@QuestionSolutions
Ай бұрын
Please give me a timestamp so I know where you're referring to. Thanks!
@samkeloinnocent8316
2 жыл бұрын
Thank you so much😊
@QuestionSolutions
2 жыл бұрын
You're very welcome! :)
@Lucy-gs5rm
3 жыл бұрын
Hello sir, how would you solve the last example when you should calculate it for around the z-axis?
@QuestionSolutions
3 жыл бұрын
Pretty much the same way, but you need to use the mass moment of inertia equations about the z axis instead of the y axis. Also, the distances should be to the z axis. You can find the equations online.
@vaibhav8009
2 жыл бұрын
Great BRO ....PLEASE PREPARE FOR THERMODYNAMICS ALSO
@QuestionSolutions
2 жыл бұрын
👍
@samkeloinnocent8316
2 жыл бұрын
@@QuestionSolutions Do you have Thermos yet?
@QuestionSolutions
2 жыл бұрын
@@samkeloinnocent8316 Yes, there is a whole new playlist, getting updated every week, or as fast as I can make them. kzitem.info/door/PLXePpKFSUW2bcuUy2fKCI9gKJJ5GXjg92
@astrobiology6218
Жыл бұрын
Great video but I dont understand why we have to use the extra step in the disc method. I = int(r^2 rho dV). When we know rho and dv=pi y^2 dz why can't we substitute that dv directly? If we do that we are missing a factor of 0.5 from the moment of inertia of the disc. But why is what I describe above wrong?
@QuestionSolutions
Жыл бұрын
This is more to do with calculus than dynamics, but the essence of it is that with the shell method, the integration is done perpendicular to the axis where as with the disk, it's integrated parallel to the axis. This means for the mass moment of inertia (when we consider density), you have to take an extra step. This "step" is actually just finding the mass moment of inertia for a disk (perpendicular to the axis), and then adding all of them up using an integration (because the volume is hollow). If you have time, I encourage you to look at the 2 methods of integration in your calculus book. This will give you the proof for both methods and their shortcomings. If you don't have time, then forget all of this and just remember the extra step with the disk method vs the shell method. It's hard to answer without actually drawing it out and showing it to you on paper, so if you're still really curious about it, please visit your professor during office hours.
@MaximeBellis
3 жыл бұрын
Very helpful videos, what’s your next topic?
@QuestionSolutions
3 жыл бұрын
Either thermodynamics or circuits. 👍
@MaximeBellis
3 жыл бұрын
@@QuestionSolutions circuits ❤️
@QuestionSolutions
3 жыл бұрын
@@MaximeBellis I will add that to my tally :)
@darrylcarter3691
3 жыл бұрын
Do one on finding the radius of gyration and Center of Gravity
@QuestionSolutions
3 жыл бұрын
I probably won't do one on that. It's just using a single formula and for most problems, it's just plugging in values and will be given to you. Also, I think I am going to stop with statics now and move onto a different topic :)
@avery-4223
11 ай бұрын
I'm at the end of my statics course and next semester I'll have to take solid mechanics, does anyone have any reccomendations for another youtuber? i cant seem to find any solid mechanics videos on this youtube channel.
@QuestionSolutions
11 ай бұрын
I don't have any recommendations but I am sure there are lots of great videos on KZitem :)
@kursatper
Жыл бұрын
Thanks
@QuestionSolutions
Жыл бұрын
You're very welcome!
@saiprasadsatya3677
2 жыл бұрын
2:22 , I am confused in writing dv ,dz , sometimes I write pie*dy^2 please explain how we can find variables in small element
@QuestionSolutions
2 жыл бұрын
It's based on the direction/axis you're integrating. It's up to you which way you want to do it, you just need to make sure your equation is setup for that direction (x, y, z).
@mihaiadriandafinoiu5220
2 күн бұрын
why for the first object is not the radius the sqrt(x^2+y^2) and is just y in your video
@QuestionSolutions
2 күн бұрын
Please give me a timestamp and I will take a look. Thanks!
@kaarthik9
2 жыл бұрын
thanks mate
@QuestionSolutions
2 жыл бұрын
You're welcome!
@ndndsnsnna433
2 жыл бұрын
Hey , I have one question, how would you calculate the moment of Inercia in the last example, if one of the circles was a bit to the left ( lets say 0.1 m from the z axel)?
@QuestionSolutions
2 жыл бұрын
Pretty much the same way, since if it was about the y-axis that the inertia was calculated, we just need the distance from the y-axis.
@jackgoris7602
Жыл бұрын
I dont get when you need Ix or Iy or Iz because sometimes they have different mass moment of inertia and i dont know wich one i need
@QuestionSolutions
Жыл бұрын
So that depends on the direction you're going to integrate. For example, if you decide to integrate over the x-axis, then you'd have Ix, if it's the y-axis, then Iy, etc.
@user-oz5yk9bm5c
Жыл бұрын
what does the d in dV, dZ, dY and dr mean?
@QuestionSolutions
Жыл бұрын
So this is from calculus. In very simple terms, the "d" is delta, so an infinitesimal change. If we say "dx" then that's an infinitesimal change in x. If we say dV, then that's an infinitesimal change in V.
@bigbluexxxx2705
10 ай бұрын
How come you didn’t cover friction and center of gravity and centroid?
@bigbluexxxx2705
10 ай бұрын
( in regards to all your videos of mechanic statics?)
@QuestionSolutions
10 ай бұрын
My faculty does not cover those subjects in a first year course. So I wanted to finish other subjects to cover more stuff for first year students.
@programmingprograms726
Жыл бұрын
I've gone thru this video 3 times now and I thought I understood each time but each time I try out a problem I get stuck! Please solve at least 2 questions from the text book to give us an example.
@QuestionSolutions
Жыл бұрын
Keep trying, don't give up. Try to solve the problems I show on the video (without just memorizing the steps). If you get stuck, see what happens next in the video. I think I've solved 5 problems in this video :)
@matteoderibaucourt7682
10 ай бұрын
why is the mass moment of inertie from the disc 1/4… and not 1/2…
@QuestionSolutions
10 ай бұрын
Please give a timestamp so I know where you're referring to. Thanks!
@brainloading5543
Жыл бұрын
You made a minor mistake that confused me a bit. The mass is equal to the volumic mass times the volume. The density, in itself, has no unit. So multiplying it with a volume would just get you another volume
@QuestionSolutions
Жыл бұрын
Could you tell me where you're referring to?
@brainloading5543
Жыл бұрын
@@QuestionSolutions 0:57 "we represent density with the Greek letter ro." but what you are actually representing is the volumetric mass, not density
@QuestionSolutions
Жыл бұрын
@@brainloading5543 Not sure if you're confusing terms or maybe it's not clear enough on my part in the video. Here, it is indeed density we are representing with the Greek letter rho. Density is sometimes also called volumetric mass density. It does have units, the SI units being kg/m^3. Mass can be found by multiplying density by the volume. Whenever you have doubts, multiply the units out and it will help. So here, we have m = ρv, so the units would be (kg/m^3)(m^3) => kg. So you end up with mass. I hope that makes sense. If you need further reading, please refer to your textbook, or see: www.engineeringtoolbox.com/density-specific-weight-gravity-d_290.html
@janecm6136
3 ай бұрын
density has unit, an example of density is the density of water which is equivalent of 1000kg/m^3. The specific gravity that is the one that is unitless
@suleymantnr6749
Жыл бұрын
where is the centroid topic?
@QuestionSolutions
Жыл бұрын
If it's not in the playlist, then I didn't cover it 😅
@yuvarajucherukuri4753
3 жыл бұрын
hllo sir
@QuestionSolutions
3 жыл бұрын
Hello!
@shaunbabar
6 ай бұрын
pls teach some trick to find it
@QuestionSolutions
6 ай бұрын
There are no tricks. If you do a lot of questions, you will gain a firm understanding of it.
@oscarsvensson5277
7 ай бұрын
Can someone please do a ”mass moment of inertia” counter? My guess is that he said it 134 times 💀
@QuestionSolutions
7 ай бұрын
Considering that's the topic being discussed, I guess I should have called it something else? 🤣🤣
@henriettasmith7096
3 жыл бұрын
Hi, I have a very difficult question, I am wondering if you can help guide me into answering this. Can I email you for help?
@QuestionSolutions
3 жыл бұрын
I don't really solve questions like that since I have to solve everyone's questions and it'd take a really long time to do. 😅 But you can email me and I'll take a look. email is contact @ questionsolutions.com
@henriettasmith7096
3 жыл бұрын
@@QuestionSolutions Ah ok, that's fine then. I emailed it, but no worries. :D
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