Scheduled Syllabus For Sprint ( Class 9th ) released describing :- which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 Duration:-1 month (Jan 2021 - Feb 2021) Free Batch Exclusive on our RU-vid Channel : Physics Wallah Foundation - 9 & 10 Batch Details 1)Best Faculties across India for different Subject/Topics. 2)Complete & Relevant Syllabus Coverage of Class-9th within 1 Month- Fastrack Jan 4,2021-Feb 15,2021 3)Monday-Saturday : Scheduled Classes everyday ( for each Physics, Chemistry,Mathematics , Biology and SST) Physics : Tues, Thurs, Sat Chemistry: Mon , Wed , Fri Mathematics: Mon, Tues, Wed, Thur , Fri, Sat Biology: Wed , Thur , Sat S.ST : Mon, Tues, Wed, Thur , Fri, Sat 4)Scheduled Syllabus released describing :- which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 Physicswallah Instagram Handle : instagram.com/physicswallah/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6
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Its 9th and im very excited to start the first chapter of physics 👻 I hope i do well in this class Best wishes to everyone who are starting a new session in 9th 💗
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in 3 case distance is 23 cm and the is same as Frist case 4 distance 44 cm and displacement is zero( because displacement is short distance between two points)
3.Distance = 3/4 × 44cm = 33cm Displacement -: 7cm² + 7cm² = s² 98cm² = s² s = 7√2 cm 4. Distance = 2πr = 2 × 22/7 × 7cm = 44cm But, Displacement will be zero because object return back to its initial position
NTSE Numerical -: 3.Distance = 3/4 × 44cm = 33cm Displacement -: 7cm² + 7cm² = s² 98cm² = s² s = 7√2 cm 4. Distance = 2πr = 2 × 22/7 × 7cm = 44cm But, Displacement will be zero because object return back to its initial position Hope! This is right! 🥰🥰
@@saxenamahiii Displacement 0 hogi kyuki displacement ka matalab hai Shortest distance between initial and final position. Aur Iss case me object initial position se travel karke vapas initial position par hi aa gaya. Isme yeh observe Kiya jata hai ki initial aur final position ke bich ka shortest distance zero hai . So, displacement will be zero! Hope ! You Understand 🥰🥰!
3. Distance = ¾(2× π × r) ¾×2×22/7×7 = 33cm Displacement = (H)² = (P)² + (B)² H² = 7² + 7² H² = √98 = 7√ 2 is displacement 4. Distance = 2πr 2 x 22/7 x 7 = 44cm Displacement = As we know initial and final point are same displacement turns zero Challenger problems 1. Displacement can be zero if the initial and final point of an object is the same 2. C. Displacement < Distance always but sometimes when distance and displacement both are covered in a straight line the magnitude becomes same but displacement can never be more than distance and distance can never be less than this displacement Tysm for the amazing session sir 😊😊
Thanks for explanation sir.... Answers are.... 1-) morni hill is in haryana, india. 2-) in 3rd question, distance = 33cm And displacement= under root 98 cm 3-) in 4 question, distance =44 m And displacement = 0m 4-) yes. The distance is always positive but the displacement May be positive, negative or 0. 5-) displacement May be equal to distance, often distance is greater than displacement so hence last answer is option number D .
@@prateekshukla1013 Listen here in the question number 3..... it is asking distance..okay Let find out... Here is a circular track and A to B, B to C and C to D is covered distance.... S = ( 2×22/7 ×7× 1/2).... *as the circumference of a semicircle travelled* + ( 2× 22/7 ×7 × 1/4 ).... *as circumference of a quadrant also travelled* ...so we have this equation... S=(2×22/7× 7 × 1/2) + (2×22/7×7×1/4) S= 22 + 11 S= 33cm.... 🙃🙃🙃 And by the why call me *"behen"*
Q1 Answer - Yes, an object has moved through a distance can have zero displacement if it comes back to his intial position. Example- If a person jogs in a circular path which is circular and completes one round. His Intial and Final position are same. Thus,his displacement is zero. I had learnt this question and answer from book.
I was an object , which was in non uniform motion ( thinking myself at rest in all concepts) on RU-vid physics videos with lot of confusions, one day I found PHYSICS WALLAH path and changed my direction towards it ... found myself very comfortable here ! Now I don't want to be at Rest ! Thankyou sir! I've travelled a lot of distance from my initial point!
Main class 8th tak physics par dyan nahi deta tha par aaj pata chala main galti kar Raha tha From now physics is my one of the favourite subject. Thanks sir thanks a lot.
@Shailja Pandey woh islea kyunki 4th question shuru mea initial point A hai aur final point bhi hai islea A ko A se joint kese karoge tou woh khud mea hi 0 hai
47:05 𝘾𝙝𝙖𝙡𝙡𝙚𝙣𝙜𝙚𝙧 𝙋𝙧𝙤𝙗𝙡𝙚𝙢- 𝙖. Yes! An object can have a 0 displacement when it travels in a straight line or it's initial and final position are the same 𝙗. d.Displacement≤Distance
Sir, you teach really well! Homework : NTSE : 3. Distance : 33 cm Displacement : 7 root 2 4. Distance : 44 cm Displacement : 0 cm Challenger Problem : 1. Yes, Displacement can be 0 when the object starts from the initial position and comes back to its initial position. Olympiad : 2 = D Thanks for helping me out @Gamingshorts.
@@Why_not_yash_vardhan To find the distance in C part, as the particle (not travelling whole circle but only travelling 1/3 of the circle) we will apply the formula as usual, 2pier/3×7 = 2×22×7/3×7 (7 cancelled) the fraction will come as 44/3 and when you further simplify it, you will get 14.6 cm.
Bro i think you are wrong bcz...if you see the ques. carefully so you will find that an object moves from A and stop on D (or in simple language circle is divided into 4 parts A to B = 1 part ....B to c = 2nd part....C to D = 3rd part so it becomes 3/4 ) so the ans. will me like this 3/4 x 2 x 22/7 x 7 now simplify the fraction and you will get the ans.
Started This Joerney One Day.... And Now completing My term 2.....The Joerney was very memorable..... Full of memories.... Just Love the whole Physics Wallah Team..... Thank You For Such a wonderful love and education 🥺🌹
sir honestly i tell you that i am a average student of my class and also my halfyearly exams was there but i scored 76 out of 80 and according to me is a big achievement for me thank you
@@muskan_ojha092 option D is correct because distance will always be greater than displacement (because displacement is the shortest distance) or distance and displacement can be equal.
@@farzanakhatoon6918 option c saying displacement always smaller than distance this is not true While option D saying sometime displacement is equal to distance and sometime smaller this is true
@@blissthetic6295 Listen carefully first you have to find the distance what is distance in case of body in circle as simple as that it is circumference of the circle that is 2pier. You already have given radius put the value of r you will get your distance but remembere that you do not have to take the whole distance of circle eliminate the distance of D to A. Then you will get your distance. displacement is the shortest distance between the initial point of an object and the final point of an object as you will know so extrapolate the radius to point the the you will find your answer.
I am a software engineer. But by seeing this video I got to know what is physics is. I have wasted my 12th career because at that time i could not understand concept of physics. But this video changed my whole life. Thanks a ton sir.
NTSE level 3. distance = 33 cm Displacement= 7√2 CM 4 . Distance= 44 cm Displacement = 0 cm Challenge = displacement can be zero. Sir you are great 😊👏👍
NTSE Numerical: (3) Distance=33cm Displacement=7√2cm (4) Distance=44cm Displacement=0cm Challenger Problem: 1. Yes, An object that has moved through a distance can have zero displacement if it's initial and final positions are same. 2. (c) displacement ≤ distance
Question ( 3 ) = distance is 17 cm because 2 py r / 3 = 2×22/7 ÷ 3 ×7 or 2×22×7 /3×7 👈 by solving this , the answer is 17 cm Displacement is 7 under root 2 .
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Challenger problem Ques-1 ans- Yes, displacement can be zero when the object's final position and initial position are same or when the object return to it's initial position Ques-2 ans- Option d
3. Displacement=7√2 Distance=33cm 4.Distance=44cm Displacement=0 Challenge Displacement=0 2.Displacement < distance I see video whole video, this video is really interesting. ❣️❣️❣️❣️😊😊🥰🥰🥰🥰🥰
@@sambaba9937 wrong agar koi chij ya person lelo Q4 ke liye wo shuru wahin se kiya yaani A point se aur wapas A point pe aaya to displacement short distance hota hai na to wahan displacement 0 hua kyonki wo wahin pe aaya chal ke
CHALLANGER QUESTIONS:1 yes it is possible when an object moves in a closed or circular path sir.... and also first question you have asked while starting video.. morni hill is located in panchkula in Haryana sir
Ask Your Question Morni Hills is a hill station situated on the outskirts of Panchkula in Haryana close to Chandigarh. Being the only hill stations in Haryana, it is also a popular picnic destination for locals and tourists alike. The hills are 1,220 metres in height and have some really stunning views to offer.
challenger q no1 Yes, displacement can be zero if its initial and finals position will remain same ,2nd optin D distance is always greater than displacement or equal.
NTSE NUMERICAL : ANS 3 ) Distance = 33 m, Displacement = 7_/2 and Ans 4 ) Distance = 44 m, Displacement = o. Because return to that point from where we had started.
Thank you very much for giving such a good lecture because as you all know that After covid, almost all the children were week in studies and exams are also coming due to that there was a lot of tension and there is also 9 class compartment can also come Thank you very much ♥️
Rakshak sir your intro was amazing and I understood every topic of this video and i will see all part of sprint of motion because i love physics and maths.
Answers of challenger problems: (1) yes,when the object will reach to it's final position again its displacement will be equal to zero. (2) (d) is the correct option.
The distance travelled by a moving body cannot be zero but the final displacement of a moving body can be zero. The displacement of a moving body will be zero if, after traveling a certain distance, the moving body finally comes back to its starting point(or starting position).
I from tamilnadu i dont know hindi only little little still want to learn from your videos. Google suggest you as best teacher of physics. I am weak in physics but still i believe i will learn from you well
Sir i'm in class 10 but i will see your class 9th lectures because my concepts are not strong due to my poor offline subject teacher of physics..... Sir i eargly wait for your phy. Videos of class 10 Sir you are god of physics.... Sir if you will taught us physics then indian future is bright.... Sir i feel that i i'm lucky coz you are teaching us...... Love from dehradun,uttarakhand
