You are the funniest and best physics teacher ive ever had the chance to learn from. Thank you Jeff!
@cpt_schaner2418 Жыл бұрын
Thank you Jeff. Helping here in Michigan. You make content so easy and digestible compared to most. You're appreciated.
@di80173 жыл бұрын
Wow, these lectures are a gift. Thank you so much!!!
@JetteroHeller832 жыл бұрын
For anyone following along, theta z works out to be 120 deg. cos inv of 0.5 = 60 or pi/3. pi/3 + pi/3 = 2 pi/3 or 120 deg.
@eghosaedigin7779Ай бұрын
Thank you this helped so much
@VillieCheweАй бұрын
Sir I don't know how many times I have laughed😅 watching your previous videos on this topic, and as if being helped was both enough, you added a vers at the end of the Video. You are the best😅❤🔥Love from Africa
@joshuafranzosayta92744 жыл бұрын
Thank you so much Dr. Jeff Hanson!
@LourdIschan4 жыл бұрын
I am no longer Johnny weak sauce :D thank you Dr Hanson!
@PrinceRamoloto-k6v5 ай бұрын
you are so good. Excellent sense of humor as well🤣🤣🤣
@georgesadler78303 жыл бұрын
Professor Hanson, thank you for another great lecture on Directional Cosines for 3D Vectors and Components. Directional Cosines are also part of Calculus Three. I am very familiar with Directional Cosines from Calculus Three( Multivariable Calculus).
@sheilagonzalez69164 жыл бұрын
You are AMAZING!!!!!! Thank you Dr. Hanson!!
@JordanTaylorVideos Жыл бұрын
Why is the angle coming off of the y-axis to vector F1 not -60 degrees? It's going clockwise.
@SawboyjrАй бұрын
So it would be -60 degrees. With that being said the equation is 3 squares added together so any negatives get dropped.
@mohammadrohankhan30874 ай бұрын
U make it look so easy.. best explanation
@aungyeoo27532 жыл бұрын
Amazing Mr.Jeff, every single video....
@hampopo14303 ай бұрын
정역학 수강전 최고의 선택
@MCGUIANG3 жыл бұрын
Thank you Dr. Jeff, you help me to underatend these lessons.
@anas_tan Жыл бұрын
The resultant force is 103N
@DrDerivative3 жыл бұрын
You sir are amazing!
@supernova376711 ай бұрын
But at 8:30, and in general, don't we take the counter clockwise and clockwise directions into consideration?? The angle from positive Z to vector F1 is clockwise. Can these angles ever be negative? Its the same thing for thetta y..its clockwise, doesn't that mean it should be negative?
@SawboyjrАй бұрын
So yes they would be negative using the directions into consideration but in this case the equation is 3 squares added together so any negatives get dropped.
@wahkilla Жыл бұрын
Why do I keep getting 60 deg for theta z? Isn't it supposed to be larger than 90 deg coming from the pos z axis? help
@engineeredchannel5649 Жыл бұрын
Remember when you take the square root, you get a positive and a negative root. The negative root will give you an angle bigger than 90
@mehmetalieroglu6128 Жыл бұрын
@@engineeredchannel5649 so when I take root of 0.25 and find 0.5 I should put "-0.5" in arccos I suppose.
@1234jhanson Жыл бұрын
@@mehmetalieroglu6128 correct
@Robbie-Robb2 жыл бұрын
Good video.
@danmog15024 жыл бұрын
Can somebody please name the associated textbook with this course? for solving problems.
@leaveitblank4744 жыл бұрын
R C Hibbeler, Engineering Mechanics:Statics
@monikasadowski40064 жыл бұрын
Thank you!!!
@johncaligan93954 жыл бұрын
Did you delete the other video of this lesson Dr?
@osamahorani27474 жыл бұрын
Awesome
@cagnokuyucu16734 жыл бұрын
Thank you !
@tutstorial84744 жыл бұрын
sir, what if I got a negative summation of Fx to find theta x, should i use arccos negative fx/f or the positive fx??
@goldenspark244 ай бұрын
Yeeehhah We getting an A with This
@abdulmajeedhamid26074 жыл бұрын
😂😂😂😂😂😂 oh my god when he Mentions Johnny week he kills my Laughing
@prithvinayak84435 ай бұрын
At, 7:30 shouldn't Thita Y be negative 60?
@SawboyjrАй бұрын
So it would be -60 degrees. With that being said the equation is 3 squares added together so any negatives get dropped.
@SpecialCheeseWaffle3 жыл бұрын
Something about a southern accent makes math sound so much easier
@Beckenbauer99993 ай бұрын
I felt the same
@nimcaandayib62223 жыл бұрын
Dear teacher please where came from 100i,200j and -30k????
@yakupanilozturk31283 жыл бұрын
he made it up , not related to vectors in the figure
@abdirahmanawil73003 жыл бұрын
It,s assuming
@akhilt.a83322 жыл бұрын
i had the same doubt
@victorcasillas80573 жыл бұрын
SO WERE LOOKING FOR THE X,Y,Z, COMPONENTS. IF WE TAKE THE SQUARE ROOT WE GET BACK THE SAME MAGNITUDE GIVEN FOR EACH VECTOR RIGHT? WE CAN USE IT TO CHECK OUR MATH. SO WHY CANT WE USE THE GIVEN FORCE OF THE VECTOR TO GET THE DIRECTINAL ANGLES
@madisonandrews6578 Жыл бұрын
today i learned my name is Johnny Weaksauce
@sivenathinathi19284 жыл бұрын
Dead fish 😅😂😂😂😂
@komanisinyinza992 жыл бұрын
kkkkkkk😂😂
@jonathanlorens23122 ай бұрын
I thought he was referring to fascist Hitler... until I got the book by Hibbeler ...
@anthonybirdsall12808 ай бұрын
Don't be Johnny Weaksauce!
@adamk8282 жыл бұрын
am johnny weak cells
@Robbie-Robb2 жыл бұрын
Dude! You never solved the original problem!? Lmao. Solve theta z for vector F1. Geez.
@romanmoskalyk1698 Жыл бұрын
What is Hitler book at 3:40 ?
@arandomguyontheinternet9057 Жыл бұрын
Russell C. Hibbeler, not the austrian painter bro
@romanmoskalyk1698 Жыл бұрын
@@arandomguyontheinternet9057 Thank you bro, but I already read "Mein Kampf").