Work Energy and Power 01|| Work ,Kinetic Energy, Work-Energy Theorem || NEET Physics Crash Course 

To download lecture notes,practice sheet & practice sheet video solution visit Umeed Batch in Batch Section of PW App(bit.ly/3ru9Agh). Note: This batch is completely FREE ,you just have to click on "BUY Now" button for your enrollment. 🔴 Details About The Batch. ✒️ We will cover complete class 11th & 12th Physics in 60 days. ✒️ Daily classes on our RU-vid Channel "PhysicsWallah-Alakh Pandey". ✒️ PDFs of Lecture Notes & Practice sheet after each lecture will be provided on PW App(bit.ly/3ru9Agh) & physicswallah.live. ✒️ Video solution of each practice sheet will be provided on PW App(bit.ly/3ru9Agh) -------------------------------------------------- 📌 PHYSICS WALLAH SOCIAL MEDIA PROFILES : 📍 Twitter : twitter.com/PhysicswallahAP?s=20 📍 Instagram : instagram.com/physicswallah/ 📍 Facebook : facebook.com/physicswallah 📍 Competition Wallah : ru-vid.com/show-UCD16... 📍 PhysicsWallah Foundation-9th & 10th : ru-vid.com/show-UCphU... For any query/doubt mail us at : support@physicswallah.orgUMEED-NEET 2021 To download lecture notes,practice sheet & practice sheet video solution visit Umeed Batch in Batch Section of PW App(bit.ly/3ru9Agh). Note: This batch is completely FREE ,you just have to click on "BUY Now" button for your enrollment. 🔴 Details About The Batch. ✒️ We will cover complete class 11th & 12th Physics in 60 days. ✒️ Daily classes on our RU-vid Channel "PhysicsWallah-Alakh Pandey". ✒️ PDFs of Lecture Notes & Practice sheet after each lecture will be provided on PW App(bit.ly/3ru9Agh) & physicswallah.live. ✒️ Video solution of each practice sheet will be provided on PW App(bit.ly/3ru9Agh) -------------------------------------------------- 📌 PHYSICS WALLAH SOCIAL MEDIA PROFILES : 📍 Twitter : twitter.com/PhysicswallahAP?s=20 📍 Instagram : instagram.com/physicswallah/ 📍 Facebook : facebook.com/physicswallah 📍 Competition Wallah : ru-vid.com/show-UCD16... 📍 PhysicsWallah Foundation-9th & 10th : ru-vid.com/show-UCphU... For any query/doubt mail us at : support@physicswallah.org

This man has the potential to change whole Indian education system 🙏

My dad is a doctor, he scored air 80 something back in 1995, with 40 percent marks in physics and 98 percent marks in bio chem, kai bar vo mere sath alakh sir ka lecture dekhte h to kehte h beta ye mujhe padhate na to rank 1 leke aata, cutoff bht upar jata aise tchr hote to, thank u alakh sir

00:00 - Introduction 03:00 - Lecture Start 08:45 - Question 1 10:23 - Question 2 12:48 - Question 3 16:03 - Question 4 18:21 - Work Done By a Variable Force 22:29 - Question 5 25:07 - Question 6 27:12 - Conservative and Non-Conservative Force 35:10 - Question 7 51:13 - How to check if given force is conservative or not 53:31 - Question 8 59:55 - Question 9 1:05:16 - Kinetic Energy 1:08:35 - Question 10 1:10:59 - Question 10.5 1:13:30 - Question 11 1:20:03 - Question 12 1:21:29 - Question 13 1:28:31 - Work-Energy Theorem 1:31:17 - Question 14 1:32:49 - Question 15 1:35:41 - Question 16 1:38:57 - Question 17 1:41:42 - Question 18 1:45:54 - Question 19 1:54:04 - Question 20 1:58:37 - Question 21 ( Homework ) 1:59:07 - Question 22 ( Homework )

How many of you have the weakest chapter : mechanical properties of fluids ?

He wants to change education system, an inspiration of today's youth.

Q.21 Work done by gravity is 10j and by air resistivity is negative 8.25 j using mgh for work done by gravity and work energy theorem for finding work done by air resistivity.

1:59:09 Q) 22 W=mgh W =mg(l-Lcos theta) W =mgL(1-cos theta)

28:49 Raaste badlo manzil nahi..... -conservative force😎

00:00 - Introduction 03:00 - lecture start 08:45 - Question 1 10:23 - Question 2 12:48 - Question 3 16:03 - Question 4 18:21 - Work Done By a Variable Force 22:29 - Question 5 25:07 - Question 6 27:12 - Conservative and Non-Conservative Force 35:10 - Question 7 51:13 - How to check if given force is conservative or not 53:31 - Question 8 59:55 - Question 9 1:05:16 - Kinetic energy 1:08:35 - Question 10 1:10:59 - Question 11 1:13:30 - Question 12 Eske aage abhi mene kara nahi ha esliye 😅😅 jav hojayega timeline de dunga. But alakh sir is so amazing maja aagya lecture me to Thank you sir ese free lectures banane ko....

21st que WD by g + WD by air resistance= KEf-KEi mgh+WDa=1/2mv²-0 WDa= -8.75 WDg=mgh=+10 (free falling)

2025 neet aspirants attandance here

26:25 Student --- why sir ?? alakh sir replied-- HUM MASTER HAI TUMHARE 😂😂😂

00:00 - Introduction 03:00 - Lecture Start 08:45 - Question 1 10:23 - Question 2 12:48 - Question 3 16:03 - Question 4 18:21 - Work Done By a Variable Force 22:29 - Question 5 25:07 - Question 6 27:12 - Conservative and Non-Conservative Force 35:10 - Question 7 51:13 - How to check if given force is conservative or not 53:31 - Question 8 59:55 - Question 9 1:05:16 - Kinetic Energy 1:08:35 - Question 10 1:10:59 - Question 10.5 1:13:30 - Question 11 1:20:03 - Question 12 1:21:29 - Question 13 1:28:31 - Work-Energy Theorem 1:31:17 - Question 14 1:32:49 - Question 15 1:35:41 - Question 16 1:38:57 - Question 17 1:41:42 - Question 18 1:45:54 - Question 19 1:54:04 - Question 20 1:58:37 - Question 21 ( Homework ) 1:59:07 - Question 22 ( Homework ) 1:59:28 - "Padhai Karte Rahein, All The Very Best"

This Is not dream bro, this is reality bro this is physics wallah, this is umeed , this is the man who Came to complete our dream

00:00 - Introduction 03:00 - lecture start 08:45 - Question 1 10:23 - Question 2 12:48 - Question 3 16:03 - Question 4 18:21 - Work Done By a Variable Force 22:29 - Question 5 25:07 - Question 6 27:12 - Conservative and Non-Conservative Force 35:10 - Question 7 51:13 - How to check if given force is conservative or not 53:31 - Question 8 59:55 - Question 9 1:05:16 - Kinetic energy 1:08:35 - Question 10 1:10:59 - Question 11 1:13:30 - Question 12

A man who is born to help middle class and poor students like me... Our alakh sir our proud... All indian students with you sir.....

The more you sweat in practice is the less you bleed in the battle! 🌈✨

1:59:20 Question 21 Wf​=−Wg​ Wf​=−mgl(1−cosθ) Wg​=mgl(1-coθ)

Anybody in 2024🎉

I miss when sir used to say "A very good morning, good afternoon yaa good night jb bhi aap mera vdo dekh rh h " 😅😅😅

We all know that this channel is far better than tuition classes and coachibg stuff..... you've been the backbone to the indian education and keep it up alakh pandey team....thank you and good luck

Sir aap ek chiz kar skte hai ki agar slides ke sab sawaal class mei nhi karwa paa rhe toh plz unhe delete na karke hume aaj ki tarah h.w de diya kare usse hum solve kar lenge...THANK U SIR FOR THIS BIG UMEED..Love u all (PW family)❤🖤.

11th student Attendence Here! 😅 And thanks for 260 Likes 💀❤️

Missing that line "Me zra apne marker ko ink pila duu" 🔥🔥🔥

Answer of last question, Work by gravitational force = +10J and Work Done by resistive force of air = -8.75J

27:02 Koi fayda nahi hua sir, hum 2x waalo k kaan are now properly trained for this HAHAHAHAHAHA

Out of 3m students i guess from this lec only around 300 to 400 students would hav been selected every year may be . So seeing lec is not a big deal lots of questions must be practised.

I was playing this video in 2x but during 26:24 when sir spoke in 2x, then it was 4x for me...😂😂😂

21 workdone by gravity= 10 J wd by air resistance= -8.75

Sir Q:16 ka answer 576 mJ ho sakta hai kiya? a= (d²x/dt²)= -8+6t t=4s , a= 16 t=4s, S= (3×4)-(4×4²)+(4)³=12 W= FS = M.a.s = (3/1000) ×16×12= 576 m J Please explain sir🙏🙏

It's actually true that doing more type of questions helps you understand the concept more, this is to remind those who study only the theory and think they will score well :))

This is literally crash course but you teach slow and better than our class teachers 😂❣️

i watch the lecture in 1.5* speed.. but specially get it back to normal to listen sr's song❤🤣

Answers of last 2 questions☺ 21) c 22) a

May be the most ideal lecture for droppers preparing for this year ...precise consize and consists 99.999%topics 🙇‍♀️

*This man has the potential to change whole Indian education system* 🙏 Edit- thank you guys for 100 likes

At 1:23:34 same question was came in my board class 11 and I did it by error analysis method and I ticked wrong answer . Now I understand why it was wrong. Thank you sir.

Kaun kaun NEET 2023 ke liye series ko follow kar rhe hai

Work, Energy and Power Awesome 😊😎 Physics by Alakh Sir is like fall in love with Physics ❣️❣️❣️❣️❣️❣️

Sir aapne kya kamaal ke Log rakhe hai. Pankaj SIR pichle 6 hour's se lecture le rahe hai LIVE ab bhi unki energy km nahi hui. Salute to you and your team 🤩🤩🤩🤩🤩🤩🤩🤩🤩🤩 pankaj SIR is MITOCHONDRIA of PW

Sir you are not just a teacher You are our SBKUCH Can't imagine our life in 11th and 12th without you

1:58:57 10J & -8.75J

No work is done on the brains of people who disliked this video 😂😂 ❤️ *Physics wallah* ❤️

21) option c Work done by gravitational force = 10J Work done by resistive force= -8.75

हर खानदान में एक कोई होता है, जो गरीबी रेखा को तोड़कर आगे चला जाता हैं.. भगवान करे तुम्हारे खानदान में शुरुआत तुम करो ....🙏🙏

The fact that sir understands where we didnt understand even though we are not infront and explains it again is just great !!

Hardwork and Dedication always beats show off 💯 Hats off Alakh sir and Team🙌🏻

Sir you say our family cannot exist without us but the truth is we can't imagine ourselves without you and all our respected and loving teachers.

Teacher is the form of god . & alkah sir is best example of that 😍......

The way he asks doubt as a student and answers it himself🤍🤍

Can anyone tell me how can I constrate on my lecture??? 🥺🥺🥺I tried my best to be active in Sir Alak's lecture and when I watched half of the video... All my concepts are going to be mixed... I am new here So plz guide me how can I better understand this too much lengthy lecture 🥺😔🥺😔🥺😔

52:28 alakh sir trolling Anupama 😅

Amazing you explaining very nice 👍 👌

H.W. Ques 1 ans (i) 10j ans (ii) -8.75 Ques 2 ans mgl (1-cos theta) Thank u so much sir for this great series 🙏🙏💗💗💗💗💖💖💖PW

19:36 this moment 😂😂😂😂

I am from pakistan and Ilike this lecture. physics wallah is one of the best channel for mdcat and neet students,WELL DONE SIR.

I am Math Teacher. Your Teaching style Catch the students. You inspired me to teach online on RU-vid.

45:11 me mg ka along the plane component lelo aur WD nikal lo...(-mgsin thetha × 10 = -100J)....aur WD in downward ke liye (-100j + x = 0).....where x is WD in downward direction ⬇️

26:22 sir ne 2x pe bhee ni dekhne dyaa😂😂😂😂 Btw 🔥🔥🔥🔥👍🏻👍🏻👍🏻👍🏻❤️

Ans for 21st-C

Come with a speed of light👍❤️❤️

Is crash course mein alakh sir har ek topic itna acha sa cover kar rha hein...sirf alakh sir e nhi...sir ka pura team har ek chapters itna details mein padha rha hein..thank u so much sir❤️❤️ Ap k wajese lakh o bacha ka acha ho rha hein✨...ap sach mein bohot acha kaam kar rha hein bacho k lia..mein bhagwaan sa pray karungi k ap aur apka maa aur apka pura family acha sa raha❤️ thanks again🙏

I miss when sir used to say "A very good I morning, good afternoon yaa good night jb bhi aap mera vdo dekh rh h" 😀😀😀😀❤️❤️❤️❤️❤️

46:42 sir ka mtlb tha friction kesi force h" non " conservative force h

Homework question Ans1. Work done by gravitation force = Mgh on solving = 10J Ans 2. Wg + Wr = 1/2mv²-0 = --8.75J Therefore, OPTION C is correct

Mai Yakeen 2.0 ki student hu but mjhe Waha pe physics samajh nhii aa rhii MR sir se toh kya mai yaha se apna backlog complete kar sakti hu? pls anyone reply me 🙏🥺

Question 22) .....mgl(1-cos theta)

Answer for second last question( ques 21 ) is "C". Answer for last question (ques 22) is " A"

Disclaimer - explaining level is too good ❤️🥴🥵

Sir I am sure one day you will bring free education in our country and make our country proud

Kaun kaun neet 2024 ke liye is serise ko follow kar rahe hai👨‍⚕️👨‍⚕️👨‍⚕️👨‍⚕️🙋‍♂️🙋‍♂️🙋‍♀️🙋‍♀️

Answer to last question (1:58:52) Work done by gravitational force =10J Work done by resistive force= -8.75J

1:58:55 ANS 21=c)

Sir ki family ab 5 million ki hone vali hai👍👍👍

38:00 "Raste badlo manzil nhi" said by Alakh sir just💥

I was preparing for neet in 2016. I wish he was there and internet was cheap that time. I would have been doctor by now.

Sir plzzzzz plzzzzz iska timtable btado kb ky pdhaoge taki apna tim table set kr ske humlog kuki only 2 month remain or uske hisab se pdhna he to timtable mil jata to acha rehta 🙏🙏🙏🙏🙏🙏🙏pllzz sir dedo

Thank you sir for this amazing lecture 💥💥💥💥🙏🙏🙏🙏

26:24 legends will go and check in 2X speed😂😂

Best part :- sir jab khud 2x speed Maine padhane lage 😂😂

26:25 kayee log 2x ki speed s dekh rhe honge......... 🙋🙋😂😂😂😅 Sir knows everything......

Sir today you have made my day made the concept crystal clear thank you sirji❤️

Nice teaching sir All doubts are cleared Thank you sir

My greatest inspiration ❤ "ALAKH PANDEY SIR" 😌💖

Aapko dekhte hi energy aa jati h sir❤️🙏🔥

Ur are best teacher in world sir 🤩🤩

Thank You So Much Sir. Completing Comedk Physics from here ❤🌌✨

9:00 question 1 12:00 question 2 15:00 question 3 17:00 question 4 36:00 question 7 24:00 question 5 26:00 question 6 54:00 question 8 1:02:00 question 9 1:08:00 question 10 1:12:00 question 11 1:18:00 question 12 1:21:00 question 14 1:20:00 question 13 1:31:00 question 15 1:33:00 question 16 1:36:00 question 17

Option(c)10j & -8.75j.❤️

28:36 finally babita's identity revealed by sir 😊😎😎

1:51:00 we can use linear motion equation when tangential acceleration is constant

C option Mgh =10 as d and f in same direction and all other options are showing different value of gravitational force

1:13:26 Thug life alakh sir 10 and half question 🙆🏻‍♂️😂

Alakh sir legendary man who touches million of heart

I am ur big fan ur teaching 😍 is awesome 😎 l got each and every concept crystal 🔮 clear

Hello alakh sir... This is a thank note. I have not gone for any coaching except ur wonderful classes... Yesterday I got admission in my dream college ... Thank you so much sir Bahuth pranamm🙏🙏 (I am from Kerala)

Sach hai. Padlo chahe kahi se, selection hoga yahi se.... What an amazing teacher he is💯👍👍👍👍

I have officially become a chuha. At this point I can solve any kind of questions just by sitting on anything.

Sir main neet crack karke apse jarur milunga.. Ye mera dream hay.. Or main ise pura karke hi rahunga.. Thank you sir..... Mera nam yad rakhiye ga..