GRAVITATION in One Shot - From Zero to Hero || Class 9th

Поделиться
HTML-код
  • Опубликовано: 31 июл 2024
  • Foundation Class 9th Sprint Batch 👉 bit.ly/3VS4OrG
    📲PW App Link - bit.ly/YTAI_foundation
    🌐PW Website - www.pw.live
    👉 Complete Chapter Gravitation 👉 • Science || Chapter 10 ...
    Timestamps
    0:00-2:00 :- Introduction
    2:00-15:25 :- Universal Law of Gravitation
    15:26- 30:18 Finding SI unit of G
    30:19 - 41:22 Applications of ULG : Daily Life
    41:23 - 47:45 :- Acceleration due to gravity (g)
    47:47- 1:06:07 :- Deriving the formula of g + Questions
    1:06:09 1:09:55 : Variation in'g'due to shape
    1:09:56 - 1:18:10 :- Difference between 'G' and 'g' plus Questions
    1:18:11 - 1:19:41:- Free fall : The Concept
    1:19:42- 1:24:49 :- Free fall numerical (Downward motion)
    1:24:50 1:25:03 : Free fall numerical (Upward motion)
    1:25:04 - 1:33:48 :- Mass/ weight plus Questions
    1:33:49 - 1:40: 24 :- Kepler's law of planetary motion
    1:40:25 - 1:42:43:- Thrust
    1:42:44 - 1:47:53 :- Pressure
    1:47:54 - 2:02:57 :- Example of pressure plus Questions
    2:02:58 - 2:09:08 :- Pressure in fluids
    2:09:09 - 2:14:38 :- Buoyant force
    2:14:38 - 2:21:27 :- Archimedes principle
    ----------------------------------------------------------------------------------------------------------------------
    📌 PHYSICS WALLAH OTHER CHANNELS :
    🌐 PhysicsWallah -Alakh Pandey: / @physicswallah
    🌐 JEE Wallah: / @jee_wallah
    🌐 Competition Wallah: / @competitionwallah
    🌐 PW Foundation: / physicswallahfoundation
    🌐 NCERT Wallah : / @ncertwallahpw
    🌐 Defence Wallah-NDA: / @defencewallahpw
    🌐 PhysicsWallah English: / @englishpw
    🌐 PW Vidyapeeth: / @vidyapeethpw
    🌐 Commerce Wallah by PW: / @commercewallahpw
    🌐 CA Wallah bt PW: / @cawallahbypw
    🌐 PW Sarkari Exam: / @pwsarkariexams
    🌐 PW - Hindi Medium: / @physicswallahhindimedium
    🌐 PW Bangla: / @pwbangla
    🌐 PW Maharashtra: / @pwmaharashtra
    🌐 PW Telugu: / @pwtelugu
    🌐 PW Kannada: / @pwkannada
    🌐 PW Gujarati: / @pwgujarati
    🌐 PW Facts: / @pwfacts
    🌐 PW Insiders: / @physicswallahinsider
    🌐 PW Little Champs: / @pwlittlechamps
    🌐 PW Pathshala: / @vidyapeethtalks
    🌐 Banking Wallah: / @bankingwallah
    🌐 SSC Wallah: / @sscwallahpw
    🌐 JEE Challengers by PW : / @jeechallengersbypw
    🌐 UPSC Wallah: / @pwonlyiasupsc
    🌐 UPSC Wallah हिन्दी : / @pwonlyiashindimedium
    🌐 GATE Wallah: / @gatewallahbypw
    🌐 GATE Wallah - EC, EE & CS: / @gatewallah_ee_ec_cs_in
    🌐 GATE Wallah - ME, CE & XE: / @gatewallah_me_ce_xe_ch
    🌐 GATE English: / @gatewallahenglish
    🌐 College Wallah: / @collegewallahbypw
    🌐 PW IIT JAM & CSIR NET : / @pwiitjamcsirnet
    🌐 MBA Wallah : / @mbawallah
    🌐 Teaching Wallah: / @teachingwallahbypw
    🌐 MBA Wallah : / @mbawallah
    📌 PHYSICS WALLAH SOCIAL MEDIA PROFILES :
    🌐 Telegram:t.me/foundationwallah
    🌐 Facebook: / physicswallah
    🌐 Instagram: foundationw...
    🌐 Twitter: / physics__wallah
    🌐 Linkedin: / admin
    📌 For any queries or complaints Visit: bit.ly/PW_Queries
    #Gravitation #Science #PhysicsWallahFoundation #Physics #Class9th #PhysicsWallah #Class9thScience #Class9thPhysics #ZerotoHero #Class9 #NCERT #CBSE #OneShot

Комментарии • 7 тыс.

  • @PW-Foundation
    @PW-Foundation  Год назад +815

    Foundation Class 9th Sprint Batch 👉 bit.ly/3VS4OrG
    📲PW App Link - bit.ly/YTAI_foundation
    🌐PW Website - www.pw.live

    • @abhisargupta6542
      @abhisargupta6542 Год назад +18

      Best lecture of all time

    • @NishaSingh-ni8gd
      @NishaSingh-ni8gd Год назад +21

      Sir I Have a DoubtQues plz clear which is easy pull or push?
      Plz give answer

    • @harishmohanty4913
      @harishmohanty4913 Год назад +3

      @@NishaSingh-ni8gd physics wallah webseries dekh ka aayo ho madam

    • @spaceyboi123
      @spaceyboi123 Год назад +9

      Sir moon ka bhi to mass hai par phir bhi usme gravity kyo nahi hai ?

    • @abhisargupta6542
      @abhisargupta6542 Год назад +2

      @@NishaSingh-ni8gd it is easy to push or pull it depends on the mass of the body if the mass of body is less than the body which is applying the force then it is easier to pull but if the body has greater mass than it is easier to push the object.

  • @divyansudivyanskumar3353
    @divyansudivyanskumar3353 8 месяцев назад +499

    😂Students law of tension,
    Pressure is inversely proportional
    To the number of days left for the
    Exam, where ( kal se padhenge
    Remain constant) 😂😂

    • @radient07
      @radient07 7 месяцев назад +5

      Are bhai😂

    • @guguna9241
      @guguna9241 7 месяцев назад +2

      Oo padh le na

    • @iamfoive5012
      @iamfoive5012 7 месяцев назад

      Clever 😂😂😂😂

    • @flying_3
      @flying_3 6 месяцев назад +3

      bhai tu 9th class me nhi he😂🤣🤣😂

    • @KantoSurido360
      @KantoSurido360 6 месяцев назад +2

      To fir Thrust ka Formula kya hoga 😂😂😂

  • @StudyHub-b33
    @StudyHub-b33 4 месяца назад +26

    Anyone of class 9th session 2024-25
    Like please
    👇👇🏻👇🏻👇🏻👇🏻

  • @manishatripathi7588
    @manishatripathi7588 5 месяцев назад +75

    00​-2:00​ :- Introduction
    2:00​-15:25​ :- Universal Law of Gravitation
    15:26​- 30:18​ Finding SI unit of G
    30:19​ - 41:22​ Applications of ULG : Daily Life
    41:23​ - 47:45​ :- Acceleration due to gravity (g)
    47:47​- 1:06:07​ :- Deriving the formula of g + Questions
    1:06:09​ 1:09:55​ : Variation in'g'due to shape
    1:09:56​ - 1:18:10​ :- Difference between 'G' and 'g' plus Questions
    1:18:11​ - 1:19:41​:- Free fall : The Concept
    1:19:42​- 1:24:49​ :- Free fall numerical (Downward motion)
    1:24:50​ 1:25:03​ : Free fall numerical (Upward motion)
    1:25:04​ - 1:33:48​ :- Mass/ weight plus Questions
    1:33:49​ - 1:40​: 24 :- Kepler's law of planetary motion
    1:40:25​ - 1:42:43​:- Thrust
    1:42:44​ - 1:47:53​ :- Pressure
    1:47:54​ - 2:02:57​ :- Example of pressure plus Questions
    2:02:58​ - 2:09:08​ :- Pressure in fluids
    2:09:09​ - 2:14:38​ :- Buoyant force
    2:14:38​ - 2:21:27​ :- Archimedes principle

  • @ashwintiwari4675
    @ashwintiwari4675 10 месяцев назад +1754

    FOURTH LAW OF MOTION:-
    Every book remains at the state of rest until and unless any external or internal exams appear, and then the speed of turning pages will be directly proportional to the amount of syllabus to be completed in time and the tension in mind remains constant...
    Edit- Bhai Bhai Itne Likes...

    • @suhani467
      @suhani467 10 месяцев назад +123

      Future scientist spotted☠️

    • @user-do6ii6bh7l
      @user-do6ii6bh7l 10 месяцев назад +71

      Ye Scientist Isro me jayega

    • @anzarmeraj9406
      @anzarmeraj9406 10 месяцев назад

      😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂

    • @anvitaartandcraft2118
      @anvitaartandcraft2118 10 месяцев назад +15

      🤣🤣

    • @suhani467
      @suhani467 10 месяцев назад

      @@user-do6ii6bh7l ISRO❎ BSRO✅.....Bharat Space Research Organisation ......👀

  • @craft18210
    @craft18210 9 месяцев назад +2406

    Kash Newton 😅pay pura tree gir jata gravity padhne nhi Parti😂😂
    Edit:- itne likes 🙃 so beautiful ✨so elegant 😍 just looking like a wow 😳

    • @user-jx9ys7th7t
      @user-jx9ys7th7t 9 месяцев назад +250

      Kash aap aate hi nhi aapko padhne k jarurat nhi prti 😅@crafy18210

    • @YogibabaUttarPradesh
      @YogibabaUttarPradesh 9 месяцев назад +44

      Bhai bhut sahi😂😂

    • @craft18210
      @craft18210 9 месяцев назад +24

      @@YogibabaUttarPradesh Thanks bro

    • @YogibabaUttarPradesh
      @YogibabaUttarPradesh 9 месяцев назад +78

      ​@@user-jx9ys7th7tkash tu na birth nahi liya huta tara comment padna nahi padta😂

    • @Entertainment.388
      @Entertainment.388 9 месяцев назад +16

      Kya😂😂😂😂 baat ha

  • @ANIRUDDHSINGH-jm3zx
    @ANIRUDDHSINGH-jm3zx 10 месяцев назад +78

    41:11
    1st: Force becomes 1/9 times of that its previous value.
    2nd: Force becomes 4 times of that its previous value.
    3rd : Force becomes 8 times of that its previous value .

    • @figureyourticket
      @figureyourticket 4 месяца назад

      can i ask why did you write 1/9 instead of Gm1m2/9 ?

    • @dahlia_orchids_vins
      @dahlia_orchids_vins 4 месяца назад +1

      ​@@figureyourticketwait what how?

    • @figureyourticket
      @figureyourticket 4 месяца назад +1

      @@dahlia_orchids_vins bruh 😭 can you explain how yall getting 1/9 for the first question? though today was my science exam

    • @dahlia_orchids_vins
      @dahlia_orchids_vins 4 месяца назад +6

      @@figureyourticket yeah hold up
      We know that ;
      F = GMm/r^2 or you can say? M1M2 ya know
      Now;
      F`= GMm/(3r) ^2
      F`= GMm/9r^2
      F`= 1/9 GMm/r^2
      F`= 1/9F
      Square of 3 is 9 and it's sign is positive when it's in devision but when to take it from division to multiplication then it becomes negative to remove that sign of negative you reciprocal it so it becomes 1/9 so it goes from -9 to 1/9

    • @figureyourticket
      @figureyourticket 4 месяца назад

      @@dahlia_orchids_vins ohhh alright alright, thank you

  • @Continuegamer99
    @Continuegamer99 10 месяцев назад +1302

    कौन-कौन Hai Jisne 9th Mein Na Koi coaching ki ya nahin Koi tuition

  • @Kaneez-7
    @Kaneez-7 15 дней назад +7

    Kinhe physics bhut achha lgta hai or samajh bhi aata but baad mein bhool jaata he😂

  • @user-fr1mf7hi7p
    @user-fr1mf7hi7p 8 месяцев назад +260

    Best Physics Teacher I Have ever studied with , my school teacher used to scare us from physics but this teacher made physics so easy and fun . Salute to Your amazing Teaching Skill......

  • @kunsif
    @kunsif Год назад +151

    JUST REVISING THESE CHAPTER BEFORE STARTING 11TH😄

    • @i-Nasty.
      @i-Nasty. Год назад +1

      ru taking notes alsp???

    • @adityahoonbhai_
      @adityahoonbhai_ Год назад +1

      Bhai main to dropper 😢hoon

    • @MonaPriya-rj4pl
      @MonaPriya-rj4pl Месяц назад

      So, this means that we couldn't understand chapters of class 11th without studying in class 9th ?

    • @Baei.ivy777
      @Baei.ivy777 22 дня назад

      ​@@MonaPriya-rj4plbecause class 9 has the basics of everything you need to understand class 9 properly. Without understanding the basics it will look hard to understand the physics or any subject in class 11

    • @yug9243
      @yug9243 18 дней назад +1

      ​@@MonaPriya-rj4plyess

  • @Preeti.sharma373
    @Preeti.sharma373 Месяц назад +12

    ❤❤❤❤❤Bheed se alag
    Dhundhne apni jhalak
    Tu akela chal
    Dhundhne ko apni chamak
    Akela hi gir akela sambhl
    Ek din akela hi ho jayega tu saphal❤❤❤❤

  • @Visiblevibe20
    @Visiblevibe20 4 месяца назад +11

    29:36 jinko answer sahi nhi aya
    Bro dekh
    6.67×6=40.02 And
    6.4×6.4=40.96 soo..
    40.02/40.96×10
    You'll get 9.77... something
    Thank me later😅🎉

  • @Bhomik2
    @Bhomik2 Год назад +11

    Guys we are going next year in 10th so best of luck all of you ❤❤😄😄
    Bye bye 9th class

  • @user-jk3vh1no9i
    @user-jk3vh1no9i 9 месяцев назад +12

    2:21:58 Level of water will remain same
    Reason: Because as he threw the stones in the pool the water level rises but at the same time boat will also rise upwards
    Therefore, water level will remain same

  • @cuberboss2634
    @cuberboss2634 12 дней назад +3

    Aap jaisa teacher agar hame classroom me mil jaye to ham physics ka genius ban jayenge

  • @anuragpalofficial2712
    @anuragpalofficial2712 4 месяца назад +89

    Ultra legends are from class 11😅

  • @mr.lieutenant12.8k6
    @mr.lieutenant12.8k6 Год назад +316

    Dear, SIr after crack my exam almost.2026 i shall be meet you offline🙇🙇🙇🙇🙇🙇

  • @zameerahmed1287
    @zameerahmed1287 Год назад +33

    Best life lesson :agr khud ki khoj krni h to akela hona hi pdega 💯

  • @solutionclass9
    @solutionclass9 Год назад +14

    😂😂 annual exam start in September 😢😢😢😢 full taiyari ke sath

  • @AnmolKishor-jo3fv
    @AnmolKishor-jo3fv 8 месяцев назад +31

    Kash Newton ke uper apple nahi nuclear bomb gira hota physics wohi par khamtam ho jati.😂😂😂

    • @mirfarha2239
      @mirfarha2239 5 месяцев назад +1

      Hmm kya maza aata hai phr physics k bagar 😂🤣🤣

    • @TRajput-pariwaar
      @TRajput-pariwaar 4 месяца назад +1

      Par pir physics
      memaje nahi
      aata par pirbe
      girna chaiye da

    • @nikkisingh4114
      @nikkisingh4114 4 месяца назад +3

      Bhai tum dono ko hindi likhna nhi aata

    • @AnmolKishor-jo3fv
      @AnmolKishor-jo3fv 4 месяца назад +1

      @@nikkisingh4114 shyad

    • @mudassirmaqsood-dy1mc
      @mudassirmaqsood-dy1mc 2 месяца назад +4

      Bhai aur bhi scientist hai physics me kabhi quantum mechanism ka naam suna hai 😂

  • @greatest_of_all_time69
    @greatest_of_all_time69 4 месяца назад +73

    11 th Wale attendance lagao Jo aapna basic strong karne aaye hai

  • @user-pc2he1ti1x
    @user-pc2he1ti1x 12 дней назад +3

    This man proove that physics is not boring 😢😅😊

  • @anshsoni12317
    @anshsoni12317 4 месяца назад +72

    Agr esa schl teachers ne pdha diya hota to ab 11th m 9th ka nhi pdh rhi hoti 🥲

    • @siddharthsoni3108
      @siddharthsoni3108 4 месяца назад +4

      aur mai 12 th k baad na padh rha hota .

    • @ronikraj02
      @ronikraj02 4 месяца назад

      Same yaar

    • @ramkumarmittal786
      @ramkumarmittal786 4 месяца назад

      Ha sahi kha 😢😢

    • @snehlata2851
      @snehlata2851 4 месяца назад

      Same yaar hm v 11th me aakr 9 ka pdh rhe😢

    • @its_raj321
      @its_raj321 4 месяца назад

      Mai bhi 11 the aake 9 ka revision kr rha hu 😊😊 matlab ki mai akela nhi hu 😅😅

  • @umeshkumargupta4554
    @umeshkumargupta4554 Год назад +46

    41:13
    (i) Force will become 9 times lesser than previous value
    (ii) Force will become 4 times more than previous value
    (iii) Force will become 8 times more than previous value
    2:21:50
    Water level of pond rises

    • @TataMotorsx
      @TataMotorsx Год назад +4

      No change 🤔🤔

    • @ashwin6670
      @ashwin6670 Год назад +2

      it does not change since the rocks are in the boat which is in water

    • @AK_GAMING.278
      @AK_GAMING.278 Год назад +2

      Not change

    • @MSDHONI7.O7
      @MSDHONI7.O7 8 месяцев назад +3

      Water level will remain same

    • @PurifierLBS_official
      @PurifierLBS_official 8 месяцев назад +1

      @@MSDHONI7.O7 The water level will decrease. While it's in the boat, the stone is displacing a volume of water whose weight is equal to the stone's weight. But when the stone is sunk, it's displacing a volume of water whose volume is equal to the stone's volume.

  • @dibyangshimahanta8965
    @dibyangshimahanta8965 Год назад +268

    40:00 i) Force reduced by 9 times
    ii) Force becomes 4 times
    iii) Force becomes 8 times
    53:08- i got my energy back in 1 minute

  • @editsbyaditya1777
    @editsbyaditya1777 4 месяца назад +30

    KON KON 11TH SHURU KARNE SE PHLE DEKH RHA HAI

  • @sapnaKumaribhardwaj
    @sapnaKumaribhardwaj 5 месяцев назад +7

    Today is my exam at 12:00 clock legends are reading before exam.😂

  • @snowflake_078
    @snowflake_078 Год назад +11

    0:01
    Pov: Earphones with full volume

  • @ritamnaskar1639
    @ritamnaskar1639 Год назад +10

    2:23:38 Answer - the water level will be same

  • @prachikode
    @prachikode 5 месяцев назад +10

    2023. 24 vale bacho attendance here 😂

  • @parthwashere
    @parthwashere Месяц назад

    1:24:49
    [i] maximum height will be 31.25 m
    [ii] the time will be 2.5 sec
    explanation:
    u= 25m/s
    t= t
    s= s
    a= -10m/s^2
    v= 0
    first we will find time by v = at + u
    > 0 = (-10)t + (25)
    > -25 = -10t
    > 2.5 sec = t
    now we will find the distance so just use 2as = v^2 - u^2

  • @RajAryan-vu6ze
    @RajAryan-vu6ze Год назад +9

    2:23:05
    Answer :-
    The level of water remains same

  • @saurabh__pandit__1228
    @saurabh__pandit__1228 Год назад +36

    Hmare class me pura physics chapter khtm ho gya lekin kuch smjh nhi aaya lekin pta nhi yha kya magic hai ki pura smjh aa gya ❣️. Aaj smjh aa gya power of P.W 🙂.

  • @FURKANREYA
    @FURKANREYA 5 месяцев назад +6

    An object is projected upward with a velocity of 25m/s
    U = 25m/s
    T = ??
    S = ??
    A = -10
    V = 0
    Find time
    V = u + at
    0= 25+(-10)(t)
    0=25+(-10t)
    0-25= -10t
    -25= - 10t
    25/10= t
    T=2.5 seconds
    Find displacement
    2as = v² - u²
    2(-10)(s)=0²- (25)²
    -20s= 0- 625
    -20s= -625
    S= 626/20
    S= 31.25 m
    T= 2.5 seconds
    Displacement= 31.25 metres

    • @mudassirmaqsood-dy1mc
      @mudassirmaqsood-dy1mc 2 месяца назад +1

      Galat hai total time pucha hai jaake wapas aane ka to time 2.5×2 = 5 sec hoga

    • @byjus678
      @byjus678 2 месяца назад

      Thanks

  • @GamerShrihaanOfficial
    @GamerShrihaanOfficial 3 месяца назад +3

    41:16
    i) Sir in first case the force reduces by a factor of 9.
    ii) In the second case the force increases by a factor of 4.
    iii) And lastly, the force increases by a factor of 8.

  • @user-ff4rl1kk1t
    @user-ff4rl1kk1t Год назад +20

    39:54 1.force is become one ninth
    2. Force is become four time
    3. Force is become eight time

    • @Shourya4vlogs
      @Shourya4vlogs 7 месяцев назад

      😂😂

    • @pulkitsharma5456
      @pulkitsharma5456 4 месяца назад

      Listen force applied will become twice not four times
      2m1×2m2
      Take two common and the rest of expression equals to f

  • @PinkiSingh-tc3my
    @PinkiSingh-tc3my 10 месяцев назад +9

    India ka best physics ka teacher sach me yaar mera school ka teacher kya padha ta kuch samajh nhi aata h . Hum unse jitna bar v padh kar exam diye h mera number to gya par first time hum ye hi chapter kiye or exam me Mera number first time numerical me aaya h I know number aacha nhi h par physics me aaya bas Mera to Khushi ke mare 😊 Dil garden garden ho gya thank u soooo much sir ❤❤❤❤❤

  • @dharmendrapatel6317
    @dharmendrapatel6317 5 месяцев назад +6

    Kis kis ki science favorite hai or apna favorite chapter batao science ka 😊

  • @Thinkforhumanity
    @Thinkforhumanity 6 месяцев назад +25

    40:00 i)force reduced by 9 times
    ii) forces increased by 4 times
    iii) forces becomes 8 times

    • @sonia9426
      @sonia9426 6 месяцев назад

      shouldn't it reduce by 1/9?

    • @Kashkim-qt6xr
      @Kashkim-qt6xr 6 месяцев назад

      ​@@sonia9426yeah

    • @hiranyajyotiray
      @hiranyajyotiray 5 месяцев назад +1

      same thing

    • @user-up6sv5ce3z
      @user-up6sv5ce3z 4 месяца назад

      Yes Bhai 😊😊😊

    • @e1ixiirrr
      @e1ixiirrr 3 месяца назад

      ​@@sonia9426 you cannot use the term “reduce” here , because the expression involves multiplication.

  • @vanshugames7659
    @vanshugames7659 10 месяцев назад +4

    41:12
    (1) distance tripled "1/9"
    (2) both objects doubled "4"
    (3) 2m1 and r/2 "8"

  • @ashwanikumarsingh4556
    @ashwanikumarsingh4556 Год назад +199

    (1)Force becomes 1/9times it's previous value.(2)Force becomes 4times it's previous value.(3)Force become 8times it's previous value.

  • @indiawaleallarounder2987
    @indiawaleallarounder2987 6 месяцев назад +5

    1:24:57
    maximum height-31.25m
    time would be -2.5 sec🎉
    g=-10m/s²

    • @Beasteditz7297
      @Beasteditz7297 5 месяцев назад +1

      bro can you explain me how?? plzzz

    • @user-pp3hm1zj5s
      @user-pp3hm1zj5s 14 дней назад

      Bro how can be time -2.5sec???😂😂😂😂

  • @Wanimmu190
    @Wanimmu190 5 месяцев назад +26

    1:25:00 (1) maximum height achieved=31.25
    (2) Time taken by the object to reach the ground again=2.5s

    • @Kanika8822
      @Kanika8822 5 месяцев назад

      Hello (1) part mera answer sahi h but time kaise likalna h samajh nhi aa rha

    • @Kanika8822
      @Kanika8822 5 месяцев назад

      Kaise karna h?

    • @Wanimmu190
      @Wanimmu190 5 месяцев назад +1

      Dekho phly part ma jaisy formula use ki na waisy hi dusry ma b krni ha V=U+AT........... inko values do aur phr ans khud hi nklyga......... V=u+at=25=0+9.8×t
      =25=9.8×t
      =25÷9.8=t
      =2.5=t ANS

    • @nishantyadav7thb369
      @nishantyadav7thb369 5 месяцев назад +3

      ​@@Wanimmu190upward motion mei toh final velocity 0 hoti hai na

    • @tgx_gamer9842
      @tgx_gamer9842 5 месяцев назад

      Kuch nahi bro dono me utsav banana ​hai 😂😂@@Kanika8822

  • @kkook_youknow7940
    @kkook_youknow7940 Год назад +97

    2:23:01 the level of water will remain the same because ,the person with his boat is already in the water along with stones
    can't thank you enough sir !!!! my extend my gratitude to you and this channel! you guys r the best!!!!

    • @ashwinnnnkumarrjt3799
      @ashwinnnnkumarrjt3799 Год назад +14

      @kkook_youknow
      No bro the water will come up because the stones will occupy the space inside the water as the level of water will increase and the boat will float at some more height
      Thus , The stone will displace the water.

    • @abhimudgal8117
      @abhimudgal8117 Год назад +7

      Wrong answer . Water will rise up as stones would occupy some space and displace the water.. this desplaced water will rise up

    • @advityagaur9957
      @advityagaur9957 Год назад +12

      @@abhimudgal8117 No it will stay the same...the boat and stones are already part of the Swimming Pool...the only difference is that they have taken space inside the boat but the boat is also part of the water...so the level of water will stay the same.

    • @ajitsingh905
      @ajitsingh905 Год назад +3

      Right answer .I got it in the first, it was quite easy. 😁

    • @SureshKumar-kf3le
      @SureshKumar-kf3le Год назад +2

      They both are the also part of swimming pool so when the stones thrown in downwards position so the level of water will remain same because of stones was in boat in swimming pool

  • @sadgiandswaroopchavan2973
    @sadgiandswaroopchavan2973 Год назад +10

    Thank you so much sir for your quick revision on gravitation it helped me in my thin year cbse class 9 th annual exams 🙏🙏🙏

  • @vivekanandpandey7817
    @vivekanandpandey7817 6 месяцев назад +3

    sir we are very lucky that you are our physics teacher. We can't understand anything by our school teacher but sir you make physics interesting.You are best ever teacher i have ever studied. Thank you so much sir. I hope you study us in class 10 and life time .

  • @RajeshKumarSingh-cj2bh
    @RajeshKumarSingh-cj2bh 4 месяца назад +1

    1:24:50 the acceleration must be positive...because it's in downward direction..you can even chech example 10.2 given in the ncert page 136

  • @user-ms2ut9rx7u
    @user-ms2ut9rx7u 9 месяцев назад +100

    One of the best channels around the world.......there is a lot of respect for teachers of PW like you in our heart

  • @rishikeshkumar3288
    @rishikeshkumar3288 Год назад +40

    1) when the distance between the object is get tripled then F =1/9 times.
    2) when the masses of both the object gets doubled then F=4 times F.
    3) when the mass of one object is doubled and distance is reduced to half then F= 8 times F.
    thank you sir itne maje se physics padane ke liye

  • @ishratali2754
    @ishratali2754 6 месяцев назад +3

    Imagine rakshak sir is punar janm of sir isaac newton 😂😂

  • @Vini_Soni
    @Vini_Soni 6 месяцев назад +2

    40:00 I) 1/9 of previous force
    II) 4 times of previous force
    III) 8 times of previous force

  • @user-bl3bo4km9q
    @user-bl3bo4km9q 8 месяцев назад +14

    1) Force reduced by 9 times. 2) Force becomes 4 times. 3) Force becomes 8 times

  • @radheyshyammaurya861
    @radheyshyammaurya861 Год назад +33

    1:24:49
    (1)31.25m
    (2)2.5s

    • @mayapareek5646
      @mayapareek5646 Год назад +1

      Kasa aya

    • @Hindurashtraofficial448
      @Hindurashtraofficial448 11 месяцев назад

      Right answ🎉

    • @kashmiri1466
      @kashmiri1466 10 месяцев назад +2

      No bro time 2ill be 5sec as question is asking time to reach the ground so it will be 2×2.5 =5

    • @Anatoleyt
      @Anatoleyt 10 месяцев назад +3

      Bro tum log kounsi value lekar solve karte ho mai to g=-9.8 m/s² lekar kar raha hu answer nahi aarha

    • @blank1967
      @blank1967 9 месяцев назад

      Wrong answer

  • @neetupoonia2488
    @neetupoonia2488 4 месяца назад +6

    Bachhe nahi 12th karne ke baad bade bhi dubra dekh rahe hai 😅

  • @sujatasharma9004
    @sujatasharma9004 6 месяцев назад +1

    a ball is projected from ground wth a velocity of 100 m/s find the height attained by the ball , and final velocity of the ball before striking the ground also fine time plus wht is the force exerted by the ball.if momentum is 100

  • @kavya_sparkles
    @kavya_sparkles 10 месяцев назад +38

    Thanku so much sir ❤. It is only because of you that I can study physics and can get good grades.. we all need a teacher like you in our schools as well ..❤❤

  • @naitiklangwan4948
    @naitiklangwan4948 8 месяцев назад +12

    2:22:29 the water will remain the same as the stones are in boat and the weight of the boat + stone are equal when stones are thrown in water

    • @ananyasoni3273
      @ananyasoni3273 6 месяцев назад +1

      Ya right❤❤😊

    • @blackphantom7596
      @blackphantom7596 5 месяцев назад

      If the stones are immersed in a fluid then the water will rise, it's because of the archemedes principal

  • @xyzf741
    @xyzf741 6 месяцев назад +2

    Thank you for being an inspiring physics teacher. Your passion for the subject and dedication to helping us understand complex concepts have made a profound impact on our learning journey. Your guidance has sparked curiosity and fueled our desire to explore the wonders of the universe. We are truly grateful for your commitment to shaping our scientific understanding. Thank you!

  • @LalitKumar-vo5sz
    @LalitKumar-vo5sz 3 месяца назад +5

    Class 11th ko start krne se pehle basics strong krne ayi hun..🤭🙂

  • @malikp33gmailmkdisplay58
    @malikp33gmailmkdisplay58 Год назад +134

    Sir bcz of you now I'm gonna crack my science final exam easily with good marks and I had a lot of tension abt physics and specially this chapter GRAVITATION but now my all doubts are cleared after watching this video , thank you so much sir for your great explaination !🖤

  • @kaiser1032
    @kaiser1032 11 месяцев назад +16

    Great session sir, helped me understand a lot.
    Answer to boat question:
    The level of water remains the same but the level of the boat rises up

  • @Jin-biased.
    @Jin-biased. 6 месяцев назад +89

    2:21:31 Ans) The level of water on the pond will remain same because initially the stones are in the boat and boat along with stones in pond so no effect will be hold the water.

  • @soumyaraj7a012
    @soumyaraj7a012 6 месяцев назад +4

    (1)Maximum height achieved= 31.25m
    (2) time taken by the object to reach the ground again= 2.5sec

    • @vivekanandpandey4495
      @vivekanandpandey4495 5 месяцев назад

      Right 👍 I also got the same ans. Isme ek doubt ho jata hai iss chapter me kaha -9.8 lena hai kaha -10

    • @user-kn9rn3lc4w
      @user-kn9rn3lc4w 2 месяца назад

      Ilove you ❤

    • @soumyaraj7a012
      @soumyaraj7a012 2 месяца назад

      @@vivekanandpandey4495 jb 9.8 given ho tab aur nhi given ho toh 10

  • @user-qv4sf8ue4p
    @user-qv4sf8ue4p 7 месяцев назад +14

    The very best teacher of physics .I love your teaching and also PW ❤

  • @KrishnaRajput01
    @KrishnaRajput01 Год назад +27

    2:22:43 The water level will remain same as volume is not changing in the pool , those who are thinking that it will rise due to increased in volume of water due to stones , they are wrong , because stones volume is already added in it
    BTW, sir is best for physics for foundation

  • @ayushpal8719
    @ayushpal8719 10 дней назад +1

    41:10 , The answers to the given question are:-
    (i) The force decreases by 9 times
    (ii) The force increases by 4 times
    (iii) The force increases by 8 times

  • @ShivaniSingh-iu7xo
    @ShivaniSingh-iu7xo 2 месяца назад

    40:00:- (a) Force is reduced by 9 times
    (b) force is increased by 4 times
    (c) force is increased by 8 times
    1:07:45:- Equator wali
    1:24:49:-(i)=31.25
    (ii)= 2.5m/s

  • @dakshgarg4813
    @dakshgarg4813 10 месяцев назад +24

    i. Force of gravitation will become 1/9
    ii. Force of gravitation will become 4times
    iii. Force of gravitation will become 8 times

    • @rubyxblink
      @rubyxblink 10 месяцев назад +1

      Pls explain these.. 😢😢

    • @chandreshkumari5736
      @chandreshkumari5736 10 месяцев назад +1

      Same answers bro

    • @rubyxblink
      @rubyxblink 10 месяцев назад +1

      @@chandreshkumari5736 explain this please

    • @mangatram913
      @mangatram913 10 месяцев назад +1

      Same

    • @BLACK_STUD_plAyZ
      @BLACK_STUD_plAyZ 10 месяцев назад

      I. F=Gm1×m2/r^2
      When distance will be tripled the F=Gm1×m2/(2r)^2
      Ans - F= G m1×m2/4r
      = 1/9

  • @kusumlata4478
    @kusumlata4478 11 месяцев назад +6

    41:13
    (i) force become 1/9 times of old force.
    (ii) force becomes 4 times of old force.
    (iii) Force becomes 8 times of old force.

    • @official_aman_gamerz
      @official_aman_gamerz 7 месяцев назад +1

      POV : when u saw too much anime😁
      -when I saw force written in this comment then I thought it is written fire force😅

  • @itsme-ko3ly
    @itsme-ko3ly 6 месяцев назад +3

    You are awesome sir thank you for your help to me by teaching this chapter in one shot 😊😊🎉🎉 thank you so much again🎉🎉

  • @ImranKhan-zz1ir
    @ImranKhan-zz1ir 6 месяцев назад +2

    Sir u're best physics teacher 😊

  • @Sunny-ut5ci
    @Sunny-ut5ci Год назад +32

    41:14 HW question (i) F' = F/9 or Force becomes nine times less than previous force

  • @Deccan5032
    @Deccan5032 Год назад +13

    After solving MTG , I started to love physics 🔆

  • @user-ll4uk9nf3r
    @user-ll4uk9nf3r 5 месяцев назад +2

    5TH LAW OF MOTION:-
    The chappal you get is inversely proportional to the marks you get in exams

  • @user-kj6bq3yc2u
    @user-kj6bq3yc2u 5 месяцев назад +1

    39:52
    Q.1) Force between 2 objects is reduced by 9 times
    Q.2) Force between 2 objects has increased by 4 times
    Q.3) Force between 2 objects has increased by 8 times

  • @bhawanapilkhwal6515
    @bhawanapilkhwal6515 11 месяцев назад +76

    Your way of teaching is great sir. I am preparing for government exams and I am revising ncert physics by watching your lecture videos. Wish I could have a teacher like you when I was in my school days😊

  • @sunitagupta7460
    @sunitagupta7460 Год назад +4

    When the distance between the two objects is tripled then answer is 1/9 times
    When the mass of the objects are doubled then answer is 4 times
    When the mass of one of the body is doubled and separation is halved then answer is 8 times

  • @nardheenrinscrafts8128
    @nardheenrinscrafts8128 4 месяца назад +1

    41:11
    1) force reduces by 9 times
    2) force increased by 4 times
    3) force increases by 8 times

  • @freefirepropro6412
    @freefirepropro6412 6 месяцев назад +2

    Only legend see this video one day before the exam 😂😂

  • @sunilgodson4752
    @sunilgodson4752 9 месяцев назад +11

    1:25:02
    S= 31.25 m
    T= 2.5

  • @babita6096
    @babita6096 Год назад +17

    That is why I love this channel bez it has both learning and fun
    It was really hilarious "Teri aur teri aur hayye Rabba 😂😂😂

  • @12_3_4_5_radha
    @12_3_4_5_radha Месяц назад +2

    Agar time travel kar sake na toh jab newton baccha tha tabhi.....😂😂😂😂😂
    Please like

  • @ankita_singh9876
    @ankita_singh9876 6 месяцев назад

    Yrr kash aise hi teachers humare school mai padhte or itne achhey se samjhte thank you sir hume itna achhey se padhne ke liye aap nhi hota toh humara physics mai kya hota Thanks a lot sir😊❤️

  • @DEADGAMING5
    @DEADGAMING5 10 месяцев назад +8

    2:22:11 the level of water will remain same as the stones' volume had already made the difference in water level when they were in the boat .So the water level will not rise

  • @rajarai8422
    @rajarai8422 Год назад +10

    Entrance exam dena h aaj aur 9th pdh rhe h😁😂

  • @PARITOSH2009
    @PARITOSH2009 3 месяца назад +1

    Agr apple 🍎 ki jagah asteroid ☄️ girta to aaj gravitational chapter na banta 😂😂😅😅

  • @Janissss0009
    @Janissss0009 5 месяцев назад +2

    41:18
    force will decrease by 9
    force will increase by 4
    force will increase by 8

  • @AdiRaman
    @AdiRaman 11 месяцев назад +13

    2:01:50 maja aa gya

  • @aashirajput1587
    @aashirajput1587 Год назад +9

    39:57
    1] 1/9 times the original value
    2] 4 times the original value
    3] 8 times the original value

    • @vivekanandpandey4495
      @vivekanandpandey4495 5 месяцев назад

      Ist to aa gya bhai but ye 2,3 kaise banegaa

    • @aashirajput1587
      @aashirajput1587 5 месяцев назад

      @@vivekanandpandey4495
      2] F=GMm/R^2
      F'=G * 2M * 2m/R^2
      F'= 4 GMm/R^2
      F'=4F

    • @aashirajput1587
      @aashirajput1587 5 месяцев назад

      @@vivekanandpandey4495
      3] F=GMm/R^2
      F'= G * 2M * m/ (R/2)^2
      F' = G * 2M * m / R^2/4
      F' = 4 * G * 2M * m /R^2
      F'= 8 GMm/R^2
      F'=8F

  • @AnshSharma-25
    @AnshSharma-25 6 месяцев назад +3

    7:10 marker be like : bulata hai magar jaane kaa nahi😂😂

  • @Arush_vlogger
    @Arush_vlogger Месяц назад +3

    Kon ye video 11/06/2024 9:36 me dekh raha ha like karo 😂😂😂

  • @raghavsgaming8936
    @raghavsgaming8936 Год назад +5

    1st case if the distance Between object is tripled then the Impact Will be= F becomes 9 times Precious value
    ön the Other hand in 2nd case if We doubled Both of the 2masses then F=G*4m upon dsq
    ön 3rd case if
    the Mass of One of The body is doubled and separation is halved then F=G* 2m upon d by
    the result Will be Force Will be 4times Precious value

  • @prishamore8
    @prishamore8 Год назад +155

    52:49 to 52:53 😜 This part was the best! Thank you for your teaching sir! I have my finals tomorrow and it helped me a lot!!

  • @fantasticideas2675
    @fantasticideas2675 5 месяцев назад +1

    these lessons help me in difficult times during finals. Bhagawan sai prathana kariti who ki yay channel kabhi band na hoo. :)

  • @nisasahani8310
    @nisasahani8310 Год назад +12

    (1) Force become 9 time half the previous value.
    (2) Force become 4 time the previous value.
    (3) Force become 8 time the previous value.

    • @alwinjohn4519
      @alwinjohn4519 11 месяцев назад

      F=G*2m^1*2m^2/r^2 so we will take both the 2 from m1 and m2 as common answer will be half of F

  • @arjungulgule7383com
    @arjungulgule7383com 4 месяца назад +8

    Before 11 I want to revise this chapter

  • @YashPatil-se3xn
    @YashPatil-se3xn Год назад +4

    47:18
    《1》force become 1/9 times its previous value
    《2》force becomes 4 times its previois value
    《3》force becomes 8 times its previous value

  • @Mahi_Aharya
    @Mahi_Aharya 3 месяца назад +1

    41:16 1. 9 times decrease
    2. Four time increase
    3. Eight time increase

  • @savitribhandare5496
    @savitribhandare5496 10 месяцев назад +20

    2:23:14 The water level will remain same, because as stones will be thrown in the water water would rise, but at the same time, boat will also rise. Therefore, level of water will remain same.

    • @ot7lover252
      @ot7lover252 5 месяцев назад +2

      It doesn't relate with boat because the stones will fall in water and for 2:23:14 providing space for stone the water will rise👍🏻

    • @Rishabh-20
      @Rishabh-20 5 месяцев назад +2

      Bhai agar vo khech ke pathar phekega to vo water pressure se niche beth jyega to rise hi hoga