This guy is always saving my physics grades, because my teacher fails to explain anything. 👍
@MichelvanBiezen6 ай бұрын
Glad you find our videos helpful.
@vivianmamboleo75387 жыл бұрын
Truly a gift to all those of us who leave physics class falling on our faces.
@MichelvanBiezen7 жыл бұрын
Hahahaha! We all been there. Glad we can help.
@ankitghosal28393 жыл бұрын
We learn this concepts in class 11 before engineering proud to be indian
@mogambo95173 жыл бұрын
@@ankitghosal2839 of course I am also indian. Our education system is one of the best education system in the 🌎
@kartiknagrale14792 жыл бұрын
@@ankitghosal2839 🍆
@kartiknagrale14792 жыл бұрын
@@mogambo9517 🍆
@mvp53323 жыл бұрын
This is amazing. Thank you SO much. I could understand in 10 minutes what I couldn't for months in other physics classes. Teaching is a skill on its own.
@MichelvanBiezen3 жыл бұрын
You're very welcome!
@egytian1009 жыл бұрын
Bless your soul you amazing man! I have a test tomorrow and i get everything you are doing, keep going.
@jeffsonhillaire5705 Жыл бұрын
you passed?
@alitr-tf1dc23 күн бұрын
@@jeffsonhillaire5705 prolly no
@ulysses11 Жыл бұрын
Wanted to say I came here to say looking for help to solve a challenge problem for my physics class only until I realized half way through that it was a trick answer. Still stayed for the excellent lesson, you’ve definitely helped me on my path Mr. van Biezen. Many thanks.
@MichelvanBiezen Жыл бұрын
Thank you. Glad you found our videos. We have thousands of videos on physisc and engineering.
@mustafaeltigani12035 жыл бұрын
I swear to my teacher’s explanation was so complicated and I didn’t understand anything until I saw this vid and I have a test tomorrow thank u so much
@Amityz72323 Жыл бұрын
You kind of sound like gru and it’s amazing. Thank you so much for this 🙏
@MichelvanBiezen Жыл бұрын
More people have mentioned that. That you.
@PhilJonesIII5 жыл бұрын
I was the whiz when we did this at school (in the 60s) but I moved in to chemistry and not gone near since. Too many years later and m son needs help with his homework. French school as well so it's in French God help me. You might just have saved my life with this. Very well explained. Thank you.
@thefridge58444 жыл бұрын
So you had your kid when you were around 50?
@PhilJonesIII4 жыл бұрын
@@thefridge5844 I'm 66 now, he is 18.
@laylaali88906 жыл бұрын
Thank you so much , i find all your videos very helpful since I’m taking AP physics and the teacher in school tries to explain things fast since we have a lot of material to cover and I often find myself lost in her lesson and it’s hard for me to keep up with her , one day i found your videos and ever since that day i depend on them whenever i need help . :) thank you very much 💕✨
@madnad42846 жыл бұрын
Some days ago i was ill and I couldn't come to school. I tried to study but didn't understand until I watched this video. Thank you so much for explaining. You saved my life
@carvelbell1814 жыл бұрын
Michel Biezen, i enjoyed watching and learning from your tutorials. Your Engineering tutorials are very good, and i like them. You did an excellent jobs of explaining concepts in a very entertaining , clear and understandable way . Many thanks for your tutorials.
@Iseeyou01653 жыл бұрын
Sir, you might hear this a lot of times or probably none but you're awesome sir. You have saved my life lol I hope you're doing well! And thanks a lot for this video!
@MichelvanBiezen3 жыл бұрын
We remember that when we were students we were at times very desperate to find anything that could help us understand the material. That is a big part of the reason why we are making these videos to help students today that are in the same position. Comments like yours tell us it is working. We are very glad they are of help to students. Thank you for your comment.
@slugthetree29562 жыл бұрын
thank you ever so much for this video. even 7 years later, people like me still find this useful! May Allah bless your soul.
@MichelvanBiezen2 жыл бұрын
Thank you. Glad you found our videos! 🙂
@arunavamajumder68237 жыл бұрын
I haven't been able to understand this problems earlier but now everything is clear. It is only because of u. U r amazing. I also liked your bow
@LW62_Gaming5 жыл бұрын
I missed this on my physics 1 exam. Looking back on it I have no idea how I didn't understand it. Its so easy now
@kahlesidelo94325 жыл бұрын
thank you so much. From South Africa. This sure will help for tomorrow's physics exam
@melissafleming75923 жыл бұрын
fellow south african! i also have an exam tomorrow!!! ugh!
@orodiopportunities47199 ай бұрын
from africa kenya thanks almost graduating come next year channel has helped alot
@MichelvanBiezen8 ай бұрын
Keep it going! Glad you found our videos.
@mamont335 жыл бұрын
Never studied mechanical engineering. But after watching your lessons, I feel that I missed a lot! So interesting! Tank you.
@noheartcatchannel90636 жыл бұрын
I hope i found this earlier this is a great help you are amazing..... If my prof is good as you i wont struggle understanding our lessons
@hsy_1232 ай бұрын
you're a savior sir where i'm able to understand by your videos since my examination is incoming, wish me luck. 🥺
@fizixx4 жыл бұрын
Been watching your vids for a while, but just subscribed. I like the straightforward style you have. My only input would be based on how I like to do problems like this and that is to wait and obtain the final forms of the variables and equations and then do all the trig functions and other numbers and arithmetic. Great video however, I enjoy watching and seeing another style and explanation. :)
@MichelvanBiezen4 жыл бұрын
That is indeed the typical way in which one should solve physics problems (solve the equations first before substituting numbers), but there are a number of types of problems, where plugging in numbers earlier is advisable.
@fizixx4 жыл бұрын
@@MichelvanBiezen :)
@fizixx4 жыл бұрын
@@MichelvanBiezen I like the videos you've done where you take the moment of inertia of a pulley into account. I'd like to see one where you take the mass of the rope into account too.
@ElHal044 жыл бұрын
great vid! im currently in my final year of highschool, and due to the coronavirus im very bored so im practising for physics in college. watching this makes me feel dumb and clever at the same time😂
@oOr3x3rOo6 жыл бұрын
You are The Boss , I am glad to watch your video ,you are amazing and i understood everything, even though My English is not good enough , thank you very much , made my day .
@kkome13882 ай бұрын
I really love your lectures they are simple and understandable THANK YOU
@MichelvanBiezenАй бұрын
You are welcome. Glad you found our videos.
@kidsnorlaxluvr5 ай бұрын
best teacher i had i swear to jerry's future kids
@sadacutely2 жыл бұрын
I dont get what he did in 8:56 can someone explain to me?
@MichelvanBiezen2 жыл бұрын
This is a typical two equations for two unknowns type of problem. In the left equation we found T2 in terms of T1. This was then substituted into the second equation to eliminated T2 in the second equation so we could solve for the value of T1 (one equation with one unknown T1). Then we took the value we found for T2 and substituted it back into the first equation so we could solve for T2.
@yosiefberhe49746 жыл бұрын
A very helpful video, i was just reviewing my class lecture and this video explained a lot. Thank you so much.
@AugustineJBenson8 ай бұрын
You just summarized my entire semester in 10 minutes. Thank you, Sir🥲.
@MichelvanBiezen8 ай бұрын
Glad you found our videos,
@carolinelapointe36274 жыл бұрын
Merci beaucoup !!! Vous m'avez vraiment aidé même si ce n'est pas ma langue ! C'est tout dire :) vous êtes très bon pour expliquer monsieur !
@MichelvanBiezen4 жыл бұрын
Merci bien
@DAT-OFFICIAL5 жыл бұрын
At 3:54, he meant to say T1x in the x-direction, not y. Just a happy little accident. :]
@MichelvanBiezen5 жыл бұрын
"Happy little acident..." Do you watch Bob Ross from "Joy of painting"? LOL. I (Mike van Biezen's wife) used to watch him on TV 25 years ago. Long before Bob Ross KZbin days.
@DAT-OFFICIAL5 жыл бұрын
@@MichelvanBiezen Heh. I wish. Bob Ross was before my time.
@rehemachiona4 ай бұрын
🥺🥺🥺🥺🥺this was so so so so helpful Thank you very much I just started my first year in university, and this didn't make sense until now
@johnnycanazon9 жыл бұрын
Professer Biezen, Thank you so much for doing these static videos I am a Mechatronic Engineering student and I have been enjoying many of your videos to help me along. I just so happen to be taking statics this summer and this playlist is what i have needed. I am also taking Ordinary Differential equations I hope you get a chance to do this as well. Again thanks for the content.
@MichelvanBiezen9 жыл бұрын
Johnny Canazon Johnny, You are welcome. I started differential equations as well as statics. Now I just need time (still working more than full time besides doing these videos) Good luck with your studies this summer.
@sherigeorge58746 жыл бұрын
YESS!! Thank you verymuch!! I couldn't understand this from my sir but u easily explainedit !!!!! THANKS ALOT!
@vijay-dw1bl5 жыл бұрын
Simply..u can use lami's theorem... 4900/sin(130)= T1/sin(110)=T2/sin(120)... Solve this equation u can get T1& T2 value
@allanmendez48664 жыл бұрын
it did not work. how?
@tasneemayham9744 жыл бұрын
Yes here you can use Lami's theorem, but you can't use it when you have an unknown force and angle that's why it is better to know how to resolve forces.
@nurmalas40213 жыл бұрын
I hope I know this channel when I'm still an undergraduate student. 😌😌😌.
@ЙОРИКОНСУЛТЕООД Жыл бұрын
Thank you for your video! They are very useful first, and second you explain very well!
@MichelvanBiezen Жыл бұрын
Thank you. Glad you find these helpful.
@wendimaginhabtemariambogal-q6lКүн бұрын
God bless bless my good teacher 🙏
@MichelvanBiezenКүн бұрын
Thank you and God bless you as well.
@cowgate5 жыл бұрын
You sir are a genius. May god bless you!
@franzduckridge50697 жыл бұрын
May God bless you, Sir. Your tutorial was really helpful.
@running7306 жыл бұрын
8:22 - 10:00 I get confused Someone please explain! How does he get 6011 if he is just dividing .815/4900
@MichelvanBiezen6 жыл бұрын
6011 = 4900 / 0.815
@hadishandai11826 жыл бұрын
It is 4900/0.8152
@neiladventurestotheotherdi40523 жыл бұрын
How did u get .8152 sir?
@saikatroy41215 жыл бұрын
Excellent tutorial. You make it so simple Sir.
@Urawizardharryy9 күн бұрын
why didn't you consider the force of gravity pulling it downward when adding all the forces in the y direction, and doesn't the tension in the 3rd cable supposed to point upward opposite to mg in order for the object to be at equilibrium?
@MichelvanBiezen8 күн бұрын
We did consider the force of gravity pulling downward. (F = mg)
@MyDavidsen5 жыл бұрын
Thank you so much! After I saw some of your videos I got an A in Physic on the exam.
@MichelvanBiezen5 жыл бұрын
Excellent. Good job!
@kennsnthumbi69472 жыл бұрын
The lesson is pretty amazing I appreciate, For further knowledge, I'd like to know what's contributes to the large tensions in T1 and T2, whereas in normal situations, we would expect that summation of tensions in T1 and T2 will be equal to the tension in T3.
@MichelvanBiezen2 жыл бұрын
When the angles appoach zero degrees, the tensions will approach infinity. 🙂
@oscarww33 жыл бұрын
I have been watching all of your physics problems, very well done videos at a good pase. Much appreciated, thanks for your hard work and dedication.
@MichelvanBiezen3 жыл бұрын
Many thanks for your nice comment. We appreciate it.
@mantakamahir2 жыл бұрын
Thank you Sir I tried to solve a problem in my high school text which was like this i tried to use Lami theoram for equilibrium but i failed to find the angles it helped alot Sir May God bless you
@MichelvanBiezen2 жыл бұрын
Great! Thank you. 🙂
@imagine_laabs7 жыл бұрын
thanks Prof! love the way u easify the question.. and we know giving knowledge I's just doubling your knowledge
@rt-viz9547 жыл бұрын
sonic boom are you American ?
@allam88425 жыл бұрын
Thank you so much for the person in this video.Im getting to know something new about Force hanging case.Hope for more such a great video in the future.
@jimmatrix72442 жыл бұрын
How do we calculate the tension and wire diameter required to fix a vertical wobble of a bunk bed? Assuming load is 400kg and cross bracing.
@MichelvanBiezen2 жыл бұрын
wires (or cables) made of metal will be rated with a maximum tensile strength expressed in force / cross secional area. Which means that your cable diameter must be sufficiently large to hold the load with margin. (The margin is usually a minimum of 300% meaning the you want a cable large enough to hold 3 times the inteded weight.)
@jimmatrix72442 жыл бұрын
@@MichelvanBiezen Thank you vry much!
@zheko78974 жыл бұрын
Oh thank you so much now I solved all my problems really thank you, keep going
@MichelvanBiezen4 жыл бұрын
Happy to help
@harmantiwana65296 жыл бұрын
You are truly brilliant...
@luxill0s Жыл бұрын
Why do T3 and FG not cancel out? When you say that T3 is acting downwards when you are solving for T1 and T3, why is that? Why would that not nullify the tension upwards?
@MichelvanBiezen Жыл бұрын
Pick the point where all 3 strings meet as the reference point. Since that point is stationary, all the forces acting on it in the x-direction and in the y-direction must add up to zero. (that is how the problem is solved as shown int the video). Your question can best be answered by drawing a free body diagram around the mass, which would then indicated that the net force on that block is indeed zero (T3 = mg) But that is not relevant to solving the problem.
@arlieferguson39903 жыл бұрын
I'm just wondering about ty1 sin 30. Are we assuming that a right angle gets formed by the angle between t1 and tx2 above it so that we can imagine a 30/60/90 triangle with ty1 opposite?
@Reversely9 ай бұрын
This is an old video but since the results showed there are inbalance between the force, does that mean its not in equilibrium? Since it supposed to be at 0 however in the end we got like 6,012N T1 and 5,540N on T2? Plus the 4900N below
@MichelvanBiezen9 ай бұрын
There is no net force on the object. (Otherwise there would be an acceleration --> F = ma) Therefore all the forces in the x-direction add up to zero and all the forces in the y-direction add up to zero.
@Tech-Aesthetic003 жыл бұрын
thank you!!!! you saved my life
@MichelvanBiezen3 жыл бұрын
Glad it helped!
@edgaryepez32392 жыл бұрын
what a god. I am passing my exam bc of this
@MichelvanBiezen2 жыл бұрын
No god around here. But glad you found our videos and you found them helpful. 🙂
@bradybenedejcic45772 жыл бұрын
Your the goat michael
@MichelvanBiezen2 жыл бұрын
Glad you found our videos 🙂
@bobu52135 жыл бұрын
Why is there a tension force equal to the the gravity force. Wouldn't that net in twice the force downward?
@snursyafiqa65293 жыл бұрын
thankyouuu!!! im now understand how to solve this type question!! Really worth to watch
@MichelvanBiezen3 жыл бұрын
Glad it helped
@kingsleyyusufu49205 жыл бұрын
Best tutorial ever thanks 🙏
@rachealkapembwa27915 жыл бұрын
Excellent better than the people lecuring and tutoring me
@ainz93873 жыл бұрын
woww we need faculty like you
@MichelvanBiezen3 жыл бұрын
Thank you.
@hatdognasigang30412 жыл бұрын
What if the mass is the one missing? And in that way we cant solve the T3. or for some instance lets say we have like 40138.86N but we have a missing angle?
@MichelvanBiezen2 жыл бұрын
If the mass is missing, then you cannot determine the tensions in the cables. Sometimes you are given the tension and you have to find the angle. You would solve it in exactly the same way, by setting up the equations the exact same way. The only difference is that you have to solve for the angle instead of the tension.
@hatdognasigang30412 жыл бұрын
How?
@hatdognasigang30412 жыл бұрын
Can you give the formula?
@MichelvanBiezen2 жыл бұрын
It is the exact same formula. You will be solving for a different variable in the same formula.
@ALPHONSEKara-g2l Жыл бұрын
Good🎉❤ Physics Dr..
@MichelvanBiezen Жыл бұрын
Glad you found our videos. 🙂
@omarabu-khalaf60436 жыл бұрын
Thank you Professor, I would like to ask about a part of a question I saw in an IG textbook, the question starts as "A smooth bead is threaded on a light inextensible string, the ends of the string are attached to the ceilling, the bead is acted on by a horizontal force F and the bead is in equilibrium..... ", the point is that the answer assumes that the tension on both sides of the string are equal, why is this true? Thanks
@MichelvanBiezen3 жыл бұрын
If the tension on the string was not the same on both ends, then there would be a net force acting on the string and the string would accelerate in the direction of the net force.
@littlereptilian75803 жыл бұрын
I cant understand how an hanging object that weights 5000kg puts force on two points that fairly over its weight. For example if this object was hanging from a single rope then the point where its hanging will have the exact same force. If i would put two ropes i thought i would divide the force in two so the hanging could we weaker to save money. Its like saying with no matter how many ropes you connect to a hanging object the force will be more? Im confused
@MichelvanBiezen3 жыл бұрын
It is because of the angle at which the ropes are stretched. It is impossible to pull the ropes with a large enough force so that the ropes would be horizontal (without any sag). That is why the power cables have a considerable amount of sag, (even though it takes more cable length to do so), otherwise the tension in the cables would be too high and they would break.
@littlereptilian75803 жыл бұрын
@@MichelvanBiezen kzbin.info/www/bejne/h4fFpnqGesmBe9E for instance in this video of yours with the pulleys. The object weights 100N, each rope gets 50N. If the ropes had an angle on this video would the force from the ropes exceed 100N?
@littlereptilian75803 жыл бұрын
Now i get it. To get the forces on the Y axis i just need to multiply by sinθ. And then when i add them up the mass of the object comes out. Thank you very much
@MichelvanBiezen3 жыл бұрын
Yes, if the ropes on the pulleys were pulled at an angle it would require additional force.
@mikerotch_tx3 жыл бұрын
This came in very useful!
@MichelvanBiezen3 жыл бұрын
Glad it was helpful!
@muhdsyamirul66893 жыл бұрын
how you get 6011N? what do you mean by ''Plus point 5' and inverse?????
@MichelvanBiezen3 жыл бұрын
4900 N / 0.8152 = 6011 N
@KillU999 жыл бұрын
This is fantastic, this was poorly explained in my physics class and they kept the cos and sin instead of numbers but using numbers is far easier to learn
@CarlosSanchezMM6 жыл бұрын
thats an opinion, mine is the opposite, depends your method of learning
@taffychiwozva83252 жыл бұрын
Thanks so much sir, this stuff actually jumped in😁
@MichelvanBiezen2 жыл бұрын
Glad it helped!
@gatlatwal84992 жыл бұрын
Please help me Calculate this problem A car traveling 20m/s passes a street corner. the car maintains its speed even though the speed limit is 10m/s. The police car sitting at the corner begins to chase the car by accelerating at 2m/s/s. How long will it take for the police car to chase the speeder? How far from the corner is the catch-up point? How fast would the police care be traveled at that time?
@MichelvanBiezen2 жыл бұрын
Assuming that the police begins the chase as soon as the car passes the police car. When the police car catches the speeding car, they will have traveled the same distance. ( d = v t) (20) t = (1/2) (2) (t^2) solve for t. Once you find t, d = (20) (t) then you find the velocity v = a t = (2) (t)
@gatlatwal84992 жыл бұрын
@@MichelvanBiezen thanks
@danielcastaneda82546 жыл бұрын
woah, very helpful i must say. Definitely subscribing
@AshuKumar-ow8sg3 жыл бұрын
A 100 lb weight is suspended from 2 cables. The tensions T1 and T2 satisfy the following equations: 0.6T1+0.8T2=100 (1) 0.8T1−0.6T2=0 (2) Solve for T1 and T2.
@MichelvanBiezen3 жыл бұрын
You can work this problem in 2 ways. Simply solve it algebraically (2 equations and 2 unknowns). Multiply the bottom equation by (-6/8) and then add the result to the top equation to eliminate T1 so you can solve for T2.
@NEET-tt6sy3 жыл бұрын
Best explanation sir
@MichelvanBiezen3 жыл бұрын
Thanks and welcome
@Penghuoth4 жыл бұрын
hello sir can you explain me why when we add the results of T1 and T2 back to 0.9397T2 - 0.8660T1=0 and we can not get zero??????
@MichelvanBiezen4 жыл бұрын
Since T1, T2, and T3 are vectors, they must be added like vectors (add all the x components together and all the y components together) If you do this correctly they will add up to zero.
@Penghuoth4 жыл бұрын
@@MichelvanBiezen thank you very much teacher
@sandeepv32326 жыл бұрын
Sir can you explain equation relating to rope drum and load. Our project had faced issue since we supplied crane where it function on top of hill due to gravity parameters we couldn't find the exact load we carry out by crane. It runs on 25hp motor, which could lift 10ton , but at 5 ton itself the gears rotated opposite direction since the load seems heavier due gravity pull near Nepal hydro power generation project. It suppose to drill and lift deep to 78mts into mountain but at 9mts itself issue faced
@lindanireymcing90143 жыл бұрын
good work it was hard but you made it very simple
@MichelvanBiezen3 жыл бұрын
Glad it helped
@alanjoy75648 жыл бұрын
thank you so much your videos are really appreciated
@preciousegbunah7316 жыл бұрын
Thank you very much professor. Really amazing lesson.
@JayPatel-im4mq5 жыл бұрын
Nice video, clears my confusion.
@lorrainegalaura63407 жыл бұрын
Thanks for your videos!!!! 🎉🎉🎉👍
@claudehermineakette92223 жыл бұрын
God bless you and all your relative
@mormar86087 жыл бұрын
I love u thanks :) you are a great teacher
@ChaldoEman6 жыл бұрын
i dont understand what you plugged into the calculator that gave you the answer for t1 towards the end! please help!!
@MichelvanBiezen6 жыл бұрын
T1 = 4900N / 0.8152
@dreamhousejewels1585 ай бұрын
Sir can you share how to add vectors by parallelogram method
@yareddejene97054 жыл бұрын
Ok i have a question How to find mass
@MichelvanBiezen4 жыл бұрын
weight = mass x acceleration due to gravity. w = mg
@CamViesky4 жыл бұрын
Can someone please explain to me why it is that the force of tension in both of the wires are more than the force of the actual weight itself?
@MichelvanBiezen4 жыл бұрын
When you add up the vertical components of the tension, they will add up to the weight of the object. The horizontal components of the tension cannot help in supporting the weight of the object, but they cannot be zero since they pull the object from a complete vertical hanging position.
@CamViesky4 жыл бұрын
@@MichelvanBiezen Oh wow! Thank you so much. I understand it now.
@sabrinaabraham65272 ай бұрын
Can someone explain why for T1 & T2x COS was used and for T/ & T2y Sin was used?
@dbbyleo4 жыл бұрын
This is so interesting to me (now)... now that I'm trying to build a backyard zipline! I'm trying to figure out what the tension load is on the anchor points (to estimate deflection based on a post materials of choice). With AnchorA at the different height from AnchorB (to gain the 3% slope)... adding a sag in the cable to create a low point (and use gravity to slow down/brake the zipline)... the low point will NOT be in the middle. With the low point NOT in the middle, then the angles at the anchors will be different, so I think the equations you presented here would be applicable to finding the tension at each anchor points based on the low point (of the sag). Is my assumption correct? Can I apply these equations to my problem? Or does this only apply to a cable with anchor points that are level (as in your example)? If so... my other problem remains, which is how do I know where my low point will be (based on the heights on the anchors and the distance between the anchors)? Is there an equation to find that?
@MichelvanBiezen4 жыл бұрын
When it comes to a backyard zipline, trial and error will work the best. The less sag you have to higher the tension in the cable.
@dbbyleo4 жыл бұрын
Michel van Biezen yes... That’s a good approach too. While I do have a tree at the starting anchor... I don’t have a tree at the opposite end, so I’ll need to install a post. This will require a sizable post hole, concrete and post itself (I imagine). And while I’d prefer to over build it anyway... I’m trying to at least find an objective reference point. I certain don’t want to under estimate the size of the post because redoing a post installation like that would almost be unbearable. Anyway... I also thought this is a fun problem where I could actually apply math and physics to solve.
@MichelvanBiezen4 жыл бұрын
I would recommend doing a few calculations with various amount of sag and with various resulting angles. You would be surprised how much tension you will have when the sag is reduced.
@josephshaff51943 жыл бұрын
Ever try coating your Whiteboards with Renaissance Wax Polish ? Wheeo! Slick. The friction is noticably reduced! What is in this stuff. Had to Polish my swords to make room for math. But the friction between the towel and the metal blade changed dramatically so I though I'd try it on the Whiteboard and bingo gotta try the whole board it might smell a bit but what a difference.
@JAMESANDREWBAUTISTA2 жыл бұрын
Sir, I would like to ask why your T1y is positive, T1y lies in the negative region. Thanks for the answer.
@MichelvanBiezen2 жыл бұрын
The sign of vectors (and vector components) depend on the direction in which those vectors act, (not what region they are in). Since both T1y and T2y act upwards (relative to the point at which all 3 strings are connected), those components are positive.
@jamesandrewbautista44852 жыл бұрын
Thank you sir
@nickthemememan34534 жыл бұрын
you are a good man, i love you
@MichelvanBiezen4 жыл бұрын
Thanks!
@anirudh53203 жыл бұрын
Proof that I need more brain cells
@alemkiru20124 жыл бұрын
Thank you so much for this video!! It helped a lot.
@benjaminwise90588 жыл бұрын
Great video, thanks man.
@shpresamuca29113 жыл бұрын
Excellent professor
@MichelvanBiezen3 жыл бұрын
So nice of you
@leannetan51197 ай бұрын
THIS EXACT QUESTION CAME OUT IN MY EXAM AND I AM ONLY FINDING OUT HOW TO DO THIS TODAY????? Y'ALL ARE TRIPPIN
@MichelvanBiezen7 ай бұрын
Now you know where to find physics help.
@worldhasmenot79286 жыл бұрын
Hello. Can you advise how much tension would be needed to pull a steel wire or any capable wire so that there is no droop, over 7 miles?
@MichelvanBiezen6 жыл бұрын
There will always be a droop. Look at the hanging cable videos in ME.
@worldhasmenot79286 жыл бұрын
Michel van Biezen darn. We are trying to conduct an experiment to detect the curve of the earth. Visual tests have possible excuses (light refraction, gravity bending light) so we need a physical test. the idea is to have two boats drive away from each other to 7 miles and have a wire or cable pull completely tight with no droop. According to pythagorean mathematics there should be a hump of water between the boats due to the earth curvature, so if the cable is pulled completely tight and on each boat the cable is about 3 feet above the sea level, if at the middle point between the boats (3.5 miles from either) the cable does not touch the water then the earth is not a sphere or it is larger than we have been told.
@MichelvanBiezen6 жыл бұрын
You should be able to conduct such an experiment using a laser.
@worldhasmenot79286 жыл бұрын
Michel van Biezen the problem with a laser is that refraction and gravity can be used to explain a redirection of visible light, but with a physical cable (if it can be droopless) cannot be explained away with vision.
@worldhasmenot79286 жыл бұрын
For example...if a laser should not be visible because it should be hitting the bump of water between the laser and the observer, It could just be said the laser light is bouncing off the water or the air so the observer sees it. Or if the laser should be 10 feet high at a target but it instead is only 1 foot high, it can just be argued that the gravity or refraction directs the light downward. So a visible test is not concrete because of these possible reasons