PATHFINDER! || RELATIVE MOTION! || 2 CARS HIT A STORM! || PROBLEM 1

[@petihundeuhun8950]

I can not stress enough how much value you give us with these videos. These help a lot of students to understand a lot of foggy concepts, which unis usually do not discuss enough. My humble request would be more statics problems (since you usually work on solids and dynamics but I only found a few statics related topics on your channel). Also If it is possible, the problems should be done without calculator. Here in Germany I will have a test soon and we can not use calculator. I wonder what tips and tricks you would use to solve a problem without calculator. We have to work with square roots and fractions when using the most known degrees (sin 30= 0.5 ; sin45=sqrt(2)/2 ; etc etc...). We also have to solve for the unknowns by hand, using substitution or gauss elimination methods. Also my triv and geometry skills are ok but I desperately try to find problems with aevanced trig or geometry but I hardly find any. Irodov and Pathfinder are amazing for dynamics or motion problems but for statics, just a very few... Hibbeler has some great problems too but not that challenging as these are. Do you have any resources for the mentioned topics? Or some books or something? Could you maybe mention some ( Statics, more advanced geometry or trig, or where the summation of the torque around a particular point is not so easy to cancel unknowns... etc.) If you find any complicated problem, please make a video. I would much appreciate it!!! Do you plan donably or "thanks" button in the future? If you keep up the good work man, I would love to honor your incredible work with a "few" dollars as a student!😊

[@holdmybipolar]

I will try without a calculator! That sounds like a great challenge! Even without a calculator I could still solve for intermediate numbers to 4 significant figures and still be accurate. And I will search for a good statics problems with good trig! I will look into the donate button!

[@holdmybipolar]

I thought this Material Mechanics/ Statics Problem had good geometry! kzbin.info/www/bejne/rJzah4aDhqlrqdk

[@petihundeuhun8950]

@@holdmybipolar Wow that problem looks challenging enough for me. I will watch it! Thanks! Do you know besides irodov and pathfinder some other challenging books? Or ressources? Or which general books are there in the USA which worth mentioning? Here in Germany we learn mostly from uni lectures made by profs (summary notes), but I find them less than enough. A lot of important things are not mentioned by the profs (you know the little details which, at the end of the day have great impact, for example a 2 force member is ONLY then a 2 force member, if it has no other force acting on it between the ends. You can imagine what happened when I recognized a 2 force member falsely, which looked like a 2 force member but had an additional pin in the middle. It was not directly an acting force on it, but when I exploded the frame, and draw the free body diagram of that part, suddenly the pin forces appeared... This was not mentioned in the summery of the profs.) These little foggy things I mean... And believe me, you can always give me some plus, does not matter how "easy" you find the topic you teach or you solve. I am grateful for every little piecd of knowledge you have in your mind, sir😁🍻.

[@holdmybipolar]

On the hardest end for my limit is the Australian Physics Olympiad Past Exams. I did the first problem (The Easiest) and will be posting tomorrow. But most of these problems I just stare at. I will reply other American texts to your reply.

[@petihundeuhun8950]

@@holdmybipolar Wow, thanks for your help with the reply thing.. Very cool! Cant wait to see that Australian monster!

[@honeybee7e]

you are a great problem solver.do you practise them before ?

[@holdmybipolar]

Some I practice before! But then show the steps I took. I am trying to do more of these in one sitting without looking but then will make a intro that is concise! That's what I did with this one. So my first sitting for this one starts at 22:12

[@honeybee7e]

@holdmybipolar Thanks.You are a genius sir .I love your videos