Bernoulli's Equation Example Problems, Fluid Mechanics - Physics

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  • Опубліковано 2 січ 2025

КОМЕНТАРІ • 274

  • @TheOrganicChemistryTutor
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    @asukachan6227 3 роки тому +29

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  • @Tocket03
    @Tocket03 5 років тому +154

    @ 14:26 he said that p2=250000/98000 it's actually supposed to be 250000-98000. I'm pretty sure that's what he meant and just got his words jumbled up. Wanted to clarify in case someone got confused.

    • @Mr.V.
      @Mr.V. 5 років тому +14

      Actually everyone noticed it but all stayed quite.

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      @HorizonSpeed26 5 років тому +4

      This kind of thing would throw me off so thank you

    • @pmmeyourdadjokes9811
      @pmmeyourdadjokes9811 5 років тому +4

      thank you, I was worried because was finally feeling like I understood this stuff and then this confuses the crap outta me

    • @jeremylim2235
      @jeremylim2235 4 роки тому

      Thank you for clarifying that!

    • @jorgeeduardocarrenozapata4243
      @jorgeeduardocarrenozapata4243 3 роки тому

      TY!

  • @ridaz3151
    @ridaz3151 3 роки тому +81

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    @chasecampbell1968 3 роки тому +10

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    @mohanbabupm5778 2 роки тому +4

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  • @renegadevestige1639
    @renegadevestige1639 5 років тому +153

    Thank you for deriving equations without differentiating too much.

  • @rebeccaly
    @rebeccaly 3 роки тому +15

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    @saleh_beats 2 роки тому

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  • @HatimTolosa
    @HatimTolosa 19 днів тому

    wowwww what a nice explanation and clarification thank you very much

  • @neo3times
    @neo3times 9 місяців тому

    at 26:00 why is that when i use the pressure at B as P1 and the pressure at C as P2 and substitute the values to get the pressure at C(P2)
    i get a wrong answer
    :(

  • @LuistrAmalgo
    @LuistrAmalgo 2 роки тому +6

    I found that P decreasing because of an increase in v as the radious of the pipe gets smaller to be counterintuitive at first.

  • @rishi_kumar892
    @rishi_kumar892 8 місяців тому

    Hi I just wanted to ask, that we were deriving the second question and the third question with the same image but
    In the second one we used 17:15
    W=PE
    But for the third question we used 29:04
    W=ME
    or W=PE + KE
    Can anyone explain why did we do this?

  • @smellydonut5088
    @smellydonut5088 11 місяців тому

    this was INCREDIBLY helpful! tysm

  • @OKPALAMICHAEL
    @OKPALAMICHAEL Рік тому +58

    Welcome all engineering students day(s) before exam😂

    • @munashemanamike4217
      @munashemanamike4217 7 місяців тому

      I'm doing Biomedicine. No idea why they make us do physics first year 😢

    • @dondeka2086
      @dondeka2086 5 місяців тому +2

      more like 10 minutes before

    • @OnyikeHenry
      @OnyikeHenry 4 місяці тому +1

      You know right 😂

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      @FavouredKofi 3 місяці тому

      We are back here

    • @destinyokwong2099
      @destinyokwong2099 3 місяці тому

      Ah swear bro
      Fluid dynamics choke

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    @adityakshirsagar5383 10 місяців тому

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  • @ok-vv5vo
    @ok-vv5vo 3 роки тому +1

    at 26:00, Instead of taking the value of A and C I instead took from B and C and got the same answer. I did (496000) + 1/2 (1000)(10)^2 = P2 + 1/2 (1000)(5)^2 .. Is this a coincidence or just another way to solve for the same problem?

  • @benjaminnyamayaro3863
    @benjaminnyamayaro3863 Рік тому +1

    great explanation, you know your stuff

  • @edgarfranco367
    @edgarfranco367 3 роки тому +3

    Simply AMAZING! Thank you.

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    @tshepangmukama7078 3 роки тому

    you are a pure blessing bruh. thanks

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    @briangabriels2821 2 роки тому

    Man u make my life so easy thank u God bless u

  • @hamseahmed6482
    @hamseahmed6482 5 років тому +4

    @ 4:08 The height of the pipe obviously changes its not a straight pipe

  • @Footballistaas
    @Footballistaas 6 років тому +3

    at 25:48, why not use p2 and p3 to figure out p3. You used p1 and p3 ???

  • @crisdebo
    @crisdebo 2 роки тому +1

    I think you made a mistake at 14:10, you changed the pressure in the left from 250000 to 150000, as well as saying dividing instead of subtracting.

    • @leenbaitalmal1583
      @leenbaitalmal1583 2 роки тому

      the height wasnt converted into m, it should have been 0.1 rather than 10. Also I think he just wrote 250 000 except it wasn't clear

  • @Chivende
    @Chivende 8 місяців тому

    Bless the lecturer❤❤❤❤❤

  • @Chedjou.
    @Chedjou. 5 років тому +4

    Nice work, helped a lot!

  • @tokyo3898
    @tokyo3898 Рік тому

    at 14:12, is the 9.8 given? and why and how did he get the 150k?

  • @raymondallenjhangiani7670
    @raymondallenjhangiani7670 4 місяці тому

    Awesome explanation 👍 thank you sir 🙏

  • @nlee1021
    @nlee1021 Рік тому +1

    In the 3rd problem, the arrows for the direction of flow were assumed at the beginning and never reexamined which causes some confusion. The water must be flowing uphill (from c to a) because the direction of flow is always from high pressure to low pressure.

  • @mimosavermillion4116
    @mimosavermillion4116 4 роки тому +2

    Thank you so much for this one!! 😭😭🎉

  • @miriscool94
    @miriscool94 7 років тому +10

    Great video thank you!
    Can you do videos on linear algebra?

  • @torameurer2951
    @torameurer2951 28 днів тому

    You mean at point 14:37 not divided by 98.000 but minus 98.000 because there’s a plus not a multiply factor there.

  • @ContaminatedWorld
    @ContaminatedWorld 2 місяці тому

    This 30min video is enough for bernoulli's equation

  • @DaaliElizabethh
    @DaaliElizabethh Рік тому

    You are the best.Thank you so much.

  • @amirali0079
    @amirali0079 4 роки тому

    you saved my term
    tnx a lotttt!

  • @uwemasuquo
    @uwemasuquo 2 роки тому

    Please Change in Pressure is always P2 - P1. Why is the reverse the case in derivation of the Bernoulli's equation? God bless you Sir for making physics simple.

  • @enzocampanamotta8274
    @enzocampanamotta8274 4 роки тому +1

    Excellent video, thank you very much

  • @cesargallar2147
    @cesargallar2147 Місяць тому

    great explanation of this equation realizing how plumbing works lol wish I would of started watching earlier ! anyways thank you!

  • @VictoriaOlise-h3z
    @VictoriaOlise-h3z Рік тому

    So good ❤. Thanks so much

  • @Footballistaas
    @Footballistaas 6 років тому

    at 14:34, why cant u use the pressure head, h = p/lambda p = (10)(9800)

  • @mixtureskylives6853
    @mixtureskylives6853 9 місяців тому +1

    One thing wrong about watching videos on UA-cam is that you cannot ask and second worst things is that you come to comment section and you find everyone praising that guy

  • @anaknadiem
    @anaknadiem Рік тому

    Suwun yo mas🙏🏻🙏🏻🙏🏻

  • @hassanaljetlawe5816
    @hassanaljetlawe5816 5 років тому +2

    Thanks alot for helping me to get this equation ❤

  • @xiao8550
    @xiao8550 2 роки тому

    at 14:00 where did the density of water (1000) come from?

    • @shahdmohammed3736
      @shahdmohammed3736 2 роки тому +1

      it is like when you know that gravity = 9.8, you should know that the density of water is 1000 kg per meter cubic.

    • @smashandburnff16
      @smashandburnff16 2 роки тому

      It's a constant, just like speed of light (c=299 792 458 m/s).

  • @mostafaashraf5619
    @mostafaashraf5619 2 роки тому

    Thank you for your great video

  • @utilizator1701
    @utilizator1701 4 роки тому

    I like that you have said the meaning of some equations.

  • @10zer123
    @10zer123 6 років тому +4

    Amazing, thank you so much brother!

  • @snoopah3077
    @snoopah3077 Рік тому

    14:41 You made an error with the algebraic operation 150kpa = P2 + 980kpa. It should be 150kpa-980kpa = P2

  • @chaynewashere
    @chaynewashere 2 роки тому

    14:28 should not be "divided by 98000". answer is correct, but it should be subtract.

  • @Ashley-dh8oy
    @Ashley-dh8oy 3 роки тому +1

    If pressure is force over area, wouldn't that mean area and pressure are inversely proportional? So why would decreasing area also decrease area? Is that like a special relationship where the force overcomes that?

  • @Sage_Quiz
    @Sage_Quiz 8 місяців тому

    I like your video bro 👍👍👍

  • @salmaibrahim5206
    @salmaibrahim5206 3 роки тому

    I hope you answer me. How the height of the pipe does not change?

  • @umarmuzammil7332
    @umarmuzammil7332 3 місяці тому

    bro love you videos

  • @erenardakaplan7984
    @erenardakaplan7984 3 роки тому

    Perfect video

  • @DystopicEdits
    @DystopicEdits 4 роки тому +2

    Can someone explain how the height is calculated and why it does not change?

  • @joshualuces8300
    @joshualuces8300 2 роки тому

    Very informative

  • @christomold3142
    @christomold3142 2 роки тому

    Great job!

  • @triet228
    @triet228 3 роки тому

    Thanks bro, it helps

  • @vamshicrazyshorts6283
    @vamshicrazyshorts6283 Рік тому

    Useful 🎉😊

  • @pingpong7049
    @pingpong7049 4 роки тому

    your video is really awesome,thank you.

  • @ibrahimkantar2402
    @ibrahimkantar2402 4 роки тому +1

    Isn't it confusing ? P=F\A right. So , when the area is decreased to 2 , doesn't Pressure need to be higher normally ?

  • @ominiboss6225
    @ominiboss6225 4 роки тому

    Great work

  • @davidmulenga4850
    @davidmulenga4850 3 роки тому

    thanks for helping

  • @francinemontemayor7428
    @francinemontemayor7428 4 роки тому

    ikaw ang sandalan ng mga magtatake ng CETs :'> tHANK U IDLE

  • @yonasteklu3557
    @yonasteklu3557 2 роки тому

    what a man !❤

  • @ghekdijbhxbndudg8474
    @ghekdijbhxbndudg8474 3 роки тому

    Thank you so much 🥰

  • @lanc3beatz870
    @lanc3beatz870 2 місяці тому

    Thank you ❤

  • @jacksonbauer5199
    @jacksonbauer5199 Рік тому +1

    For question 2, what is the distance between points A & B? Without the distance or the amount of time it takes to travel from A to B at 4 m/s, slope cannot be calculated. I am no expert on this topic, but it seems that a 10 meter increase in height over the span of 1 meter would yield a different result than a 10 meter increase in height over 10 Kilometers. Am I wrong? Did I miss something?

  • @dioutoroo
    @dioutoroo 3 роки тому

    this is too good! sheeeeeesh!! Thanks

  • @ajoboemmanuel3918
    @ajoboemmanuel3918 3 роки тому

    U said if height is getting higher then pressure is getting lower that means the velocity is getting higher.
    If that the case the velocity of water going up the storey building should be getting higher right?

  • @dylanburnside3978
    @dylanburnside3978 6 років тому

    awesome video my man, thank you!

  • @Amanda-le8qe
    @Amanda-le8qe Рік тому

    THANK YOU

  • @HorizonSpeed26
    @HorizonSpeed26 5 років тому

    Thanks so much for the video.

  • @EmmanuelKipngeno-k6w
    @EmmanuelKipngeno-k6w 2 місяці тому

    wow perfectly done

  • @LivingLarrystyle
    @LivingLarrystyle Рік тому

    How come for question 3, we assume that the velocity btw a and b will be the same with the same area, however later on it was mentioned that with a high drop there is an increase in pressure which would lead to and decrease in velocity? Shouldn’t the velocity at B decrease?

  • @intan6409
    @intan6409 4 роки тому

    Thhnnkk uu... But why we have to divide with area and volume when derive the equation

  • @hana_notbanana
    @hana_notbanana 8 місяців тому

    in 22:30, how did he get the 1000? i'm so confused. thank u for everyone that'll respond to my comment!!

    • @jamaltv25
      @jamaltv25 8 місяців тому

      Density of water is 1000kg/m^3 at room temp

  • @ypeebim7117
    @ypeebim7117 4 роки тому +1

    4:24 Why is density 1000 ????????????

  • @ZULFERISYAHPUTRA
    @ZULFERISYAHPUTRA 4 роки тому

    Dear Sir............Example Problem : One hydraulic cylinder, the end is connected to the Threaded rod so that it can be rotated. Cylinders with a bore size of 18 mm, 10 mm rod and a stroke of 300 mm single acting in a condition that is filled with oil. If the cylinder is rotated 10 mm.
    a. How to calculate it
    b. What is the gauge pressure

  • @johnnyedemagboado4742
    @johnnyedemagboado4742 3 роки тому

    Please I have a question: The pressure required to prevent crude oil from entering a plug core of a finely divided reservoir solid rock is twice as great for a liquid of surface tension 50mN/m, which completely wets the solid, as it is for a liquid of surface Tension 70mN/m, which has a finite contact angle with the reservoir solid rock a)calculate the contact angle b)What is the importance of the contact angle calculated

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    @AyushArt 4 роки тому +1

    SO MUCH better than khan academy!

  • @kayannet219
    @kayannet219 4 роки тому

    thank you very much.

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    @michaelgonzalez9058 3 місяці тому +1

    Thar is why when u squeeze a hose it squirts

  • @Lolo-tn3mb
    @Lolo-tn3mb Рік тому

    for question 2, why did u divide at the end?

  • @Megha-rv2hd
    @Megha-rv2hd 3 роки тому

    Amazing 👍👍👍😍🤩video

  • @austinguria5349
    @austinguria5349 4 роки тому

    very helpful