Can a force affect the velocity of a particle moving perpendicular to it?

Answer to a question from a student

[@thunderbolt9302]

If you consider tangential acceleration too, means accelerated circular motion... V(vec) = (mag)(v cap). Here "mag" = magnitude of velocity and "v cap" is the direction and "v(vec)" means velocity vector... And if we differentiate it wrt time you'll get dV(vec)/dt=[d(mag)/dt](v cap)+[d(v cap)/dt](mag) And you relate this equation with a (vec) = a(along velocity) + a(normal to velocity vector) ... You'll get Normal component of net acceleration= [d(v cap)/dt](mag).. this shows then the rate of change of direction of velocity vector multiplies by the magnitude of velocity give the normal component of the net acceleration...it also shows that, normal component only changes the direction of velocity vector..

[@Ellascreamzz]

🤡

[@thecodingk2576]

🌝🌝🤯

[@PradipRuj-b3i]

Huh Are you making this simple or complex😂

[@thunderbolt9302]

​@@PradipRuj-b3iidk :/

[@malharkshemkalyani5235]

sir your dedication about the physics is very great and me and many more students are inspired from your attitude towards physics and definition because of you sir india will reach great height in the field of physics your book is sacred as giita for me loce you alot sir

[@RavishKumar-fi6wu]

Gahre concepts hindi mein itne saral tarike se. Pranam shreeman, jeete rahiye 🙏

[@nipuchaurasiya404]

How we travelled in time in future or past if we go more than light of speed and why we considered speed of light in time travel. Time travel me speed of light ka kya relation. Oo formula mujhe bhi pata hai but in real life speed of light ka time travel se kya relation hai please make a video on this

[@suddhasattasaha4793]

My question is " Does a charge undergoing acceleration within a gravitational field emit radiation? " I have been thinking about this situation for quite some time since my 11th grade and could not come up with any possible answer. I have also asked this to many physics teachers and professors but could not get a satisfactory response. According to classical electromagnetism, an accelerating charge emits electromagnetic radiation. However this scenario touches upon the intersection of two fundamental theories in physics-electromagnetism and general relativity.

[@a_m887i]

7:31 the force which acting towards the center of circular path is called centrifugal force

[@FundamSrijan]

Aap kahan the gyani baba Kam se kam naam to sahi bata do *CentriPETAL force

[@SAURAVKUMAR-nm2jj]

Sir I am the student from where you did graduation - Patna Science College. I meet you in 2013 When you come to see my poster of black hole in competition. And said this is something different you have projected, but your chandrashekher limit value to being a black hole is wrong. I remember that moment. 😊

[@yuddhveermahindrakar6864]

धन्यवाद सर बला मूळे वेग वाढतो, कमी होतो,लंब असेल वेगाची दिशा बदलली पाहिजे छान स्पष्टीकरण दिलात त्याबद्दल धन्यवाद

[@ramashish7695]

Thank u so much sir u r my inspiration ❤

[@gouravaswal8636]

Thankyou sir

[@amitkumar.9157]

But I have a doubt,should not the Direction of horizontal component of velocity change as gravity acts perpendicular to it.I am not talking about the magnitude of horizontal velocity,it will remain constant but its direction should change.Please anyone clear my doubt 🙏

[@hemant4365]

Living embodiment of Physics 😊

[@rajeshkumarpandey3464]

Sir during pre exam of 10th a question have asked in my exam that if the refraction doesn't occur in two different medium then the value of angle incidents and angle refraction will be the question was too easy that both are = 0⁰ but as we know that sin i /sinr= refractive index so from this sin i / sinr should equal to 1 but sin 0 equal to 0 and 0/0 is undefined

[@engsherif4657]

Good

[@basantakumarsahu5398]

Wonderful explanation

[@username_taken_se_pareshan_boi]

Loved the explanation...

[@mohammadbinabdulmannan977]

Thank u so much ji❤

[@bhagyashrigaikwad1776]

Thank you

[@Kindcardiologist]

Best explanation sir👑

[@krisanjoy245Dimasa]

Sir I am from class 12th student and I have some confusion. .. my question is Whenever the light travel from one medium to the another medium , then what will be change and what remain constant?? The question was search in Google and I got answer also but I didn't satisfy 🙃 Sir answer is that their wavelength and speed will change but frequency will not change 🤔🤔🤔🤔 how? Sir from my according , if wavelength will change then should be also change their frequency because wavelength is inversely proportional to frequency ,it should be changed their colour because different wavelengths behave different colours ,,,, But I don't how I satisfy myself 😒😥 ... Sir that's my doubt Sir please give response to me 🙏🙏🙏 and I hope 😊❤ Love you sir

[@krisanjoy245Dimasa]

And I'm from Assam 😊

[@sumantasahoo9901]

We miss you sir please come with new course in bsc physics course

[@KushumBajpai-b6s]

Wow sir, You're looking like Newton.. similar hairstyle❤

[@jajbactet4778]

Sir,aap 11th ,12th ka physics ka class dijiye u tube pe....

[@Samu-bb5rj]

Why some substance doesn't mix well with water like saatu? And why magic sand use a bubble layer to not get wet it is like a hydrophobic sand sujal pandey class 11 bokaro

[@anilsinha5029]

Guru ji👏👏👏

[@smartbrainsnamandeep6984]

Sir, As we know that Scaler quantity can't have negative value. So how the work is Negative although it is Scalar

[@KrishnapratapSinghYadav-z9n]

Sir I'm having problem in Finding the electric flux linked with the curved surface of vase

[@shayar333]

Sir I have a question. I am Jahnvi of class 12th sir why only a moving charge experiences the magnetic force and not a static charge?? And Why a static charge produces electric field but not magnetic field how is this possible as when velocity is constant and a particle is accelerated it produces an electromagnetic wave.

[@SujanDas-zb7fj]

Sir is looking like Bhishma Pitamah of Physics.

[@Srivathsa8027]

Sir is looking like that girl in club in GTA vice City.

[@rachitgupta1632]

Sir myself is sachin agrahari from jaunpur, up. Currently I am in standard 11..... Sir plz tell me the fundamental defference between momentum and kinetic energy and physical institution for them as different physical quantity. Sir I have very strong desire to know tha why we have define the both not one of them only... Does in any scenario they can be treated as interchangeably or not.

[@ramenguy6827]

I had same doubt while reading wpe k=p²/2m

[@Ancient_Kahaniyan]

Plz Ans:-- Q. विद्युत् चुम्बकीय तरंगों की जो आकृति हम देखते हैं वह आकृति बनती कैसे है? "आपकी भरम* वाली कक्षा में आपने वैद्युत क्षेत्र को स्वयं एक भौतिक राशि कहा था। और कहा था कि उसे गमन करने में कुछ समय लगता है।" अब इसी आधार पर विद्युत् चुम्बकीय तरंगों की आकृति में विद्युतीय क्षेत्र की जो आकृति है,उसका निर्माण करने की मैं कई बार कोशिश कर चुका हूँ। समझ में नहीं आता कि वि.चु. तरंगों की जो लहरदार* आकृति हम देखते हैं वो कैसे बनती है ? कृपया इस प्रश्न का उत्तर दीजिए। 🙏🏻🙏🏻🙏🏻🙏🏻

[@Anirbandutta9832]

❤IIT BOMBAY ❤

[@ArnabPhysics]

If we take ∆ t time then after ∆t magnitude of velocity =√(a∆t) ^2+v^2 ... So if ∆ t tends to zero magnitude of velocity tends to v But then why is direction changing? It's because if ∆t tends to zero angle deflected is tan inverse(a∆t/v) becomes extremely small, so, by a small angle it will rotate. So, if we consider here that small angle, then why are we ignoring the small change in v? Because if we expand it in series we get = v(1+(a∆t/v) ^2) ^(1/2) = v (1+1/2.(a∆t/v) ^2+•••) Since ∆ t is very small, the second term is not comparable to 1. So, it tends to v But if we expand the tan inverse (a ∆ t/v) = a∆t/v-(a∆t/v) ^3+••• But here the first term is however small, it is greater than other terms. That's why we can't ignore the first term and say zero. (Because ∆ t tends to zero doesn't mean ∆ t=0)

[@mamtasinghai]

Hello sir

[@mamtasinghai]

Hii sir

[@cheshmtikoo55]

just a joke sir is flexing by showing macbook🤣

[@igscout]

Is budde ka kya naam hai

[@shivamistic]

Had this exact doubt 4 years ago, I'm so glad I worked it out in 4 hours the exact same way he did! Today I'm fully satisfied of my solution, all thanks to you, Sir!

[@sayanpal9533]

Well done and keep shining! 👍

[@MUSHHAID99khan]

❤IIT KANPUR ❤

[@AkashKumar-vy7zx]

Why?

[@medicalstudies2356]

Dickridin❤️❤️❤️

[@Morningstarintheroses]

@@medicalstudies2356💀🤣🤣

[@kryrins]

​@@medicalstudies2356found the jeeneetard

[@SharadPandey-vh5hd]

My brother in iit k

[@BhartiyaSanskritibachhwo]

सर आप हिन्दी में क्यों नहीं पढ़ाते हैं

[@sarmistharoy9087]

Sir why circle has 360⁰.

[@AbhinavSingh_0611]

Because we defined 360°=1 full rotation

[@SupriyaDas-cr4dd]

Sir I am one of your students who attended your Workshop On Innovative Science Seminar. West Bengal, South Dinajpur. This seminar was held from Balurghat Lalit Mohan Adarsh ​​High School. Thanks sir for all your valuable comments.❤️

[@Depz-r7k]

According to the question asked, my explanation would be that when we try to increase the speed of that stone string contraption, you are increasing the angular velocity by which the stone rotates, due to this increased angular velocity the centripetal acceleration increases which basically means the the centripetal force I.e. tension in this case increases. Due to increase in angular velocity, you are providing the stone angular acceleration, and due to this angular acceleration the tangential acceleration increases, which increases the velocity. Therefore the perpendicular force does not have anything to do with increasing the velocity but just the fact that it is being spun faster will increase the tangential velocity. Increased tension in the string is a by product of increased angular velocity, many times if the rock is spun too fast, the string breaks and the rock goes flying tangentially. The string breaking signifies that there was an increase in tension force which went beyond the capacity of the string and eventually broke the string. Thanks.

[@surajgupta7888]

Legendary Explanation 🙏 by Legendary Teacher 🙂

[@gowharlone9391]

Sir we are waiting for new course on electricity and magnetism Current electricity,,emi and ac etc ..... please 🙏 launch third part of electrodynamics 🙏🙏🙏🙏

[@rishikeshsingh8117]

Sir I am rishikesh Anand and I have doubt that if two blocks are keep one above another then pull/push upper block can it possible that lower block move fastest then upper block if friction is present between two blocks

[@VishalSingh-p8v9j]

thanks sir your explanation is fantastic🙏🙏🙏

[@Lipika-py2zt]

Sir I'm Abaneesh Mohapatra from odisha Rourkela of class 9 , I have a doubt In a concept of fluid mechanics I.e. A beaker is filled with water and a ice cube is partially floating in it and a coin is placed over it , after the ice melt, the water level decreases (why?) Thank you

[@krishnagupta33452]

Because ice has greater volume than water

[@HEATHENS5074]

@@krishnagupta33452 no but even after the ice melts the water lever doesnt change

[@HEATHENS5074]

hey i got the solution.. its too long to type in chat, hit me up if u want the picture

[@AnkitRajput-mx9yf]

Because the coin is on ice cube 🧊 and due to coin weight the ice 🧊 taking much space of water and when the ice 🧊 got melt than the water take lesser spane than the ice 🧊 and water level got decreases

[@KrishnaChauhan-fo4ky]

seee the beaker is fully filled so when ice cube is placed a type of force called buoyont force act on it now for fully submerging or melting u can take here it must displace equal water from the beaker and hence there is no change inwater level as water has been displaced out but the coin here displaces the extra water and hence water level decreases as ofc coin is not participating in the quantity of water level

[@Monojeetroy04]

Long live legend H.C. Verma sir 😊❤

[@FNShadow008]

I literally had this exact same doubt, and my friends weren't able to give a satisfactory answer as well, but this was an excellent explanation, thank you so much sir!

[@OverThinkerbruh]

sir THIS IS EXACTLY MY DOUBT IN WHOLE PHYSICS I LEARNT TILL NOW THANK YOU

[@PradipRuj-b3i]

Very good explanation saralta se hi physics samajhne me asani hoti hai

[@PRITAM272]

LEGEND H C VERMA

[@VikashKumar-vr3vw]

Physics me. 0. Ka use kyu karte hai joki infinite proof nhi hauya hai. Please sir reply this question

[@onlineacademy7520]

DIMENSIONS OF Snth(displacement in nth second) Please explain this Some teachers are saying [LT^-1] and some are saying [L] Which is correct?

[@Man_ish_Kr]

As the dimensions of (2n-1) in the formula of snth is [T]. The correct dimension of your question [L]. Those who say [LT-1], they don't know physics.

[@bugatigamer3511]

Hello Sir My name Vaibhav Kumar Upadhyay Today you come to Mahuja, Our Village . I felt very happy. Thank you Sir Did you liked our projects? Earthquake detector.

[@shalu494]

Sir mere bhi boht sare doubt hai me aapko kaise send karu ???🥺

[@shalu494]

Sir me 9th class me hu 🥺

[@Dilsearijitian]

​@@shalu494thoda bdi ho jao ..

[@amangusain7763]

Sir I ask a question to my teachers that , "What happens if we connect a conductor to a positive terminal of battery onley ? Can we say that the conductor is positively charged at this situation? if yes, then it means that current will flow in the wire which join conductor to the positive terminal of battery. But how it's possible because if current flow in wire the potential of positive terminal of battery will decrease and electric field also decrease between the plates of battery and in this situation driving force will pull the electrone frome positive plate to negative plate after this we get equilibrium condition. But the terminal potential difference of battery will increase with respect to initial situation when no conductor connecting with positive terminal of battery ". Sir My physics teacher give me the answer but my inerself not satisfying. Please sir help me and solve my this problem .. 🙏🙏

[@SunilKumar-hg6nf]

I am Rahul Kumar study in class 9th, And my question is that earth is revolve around and centrifugal force is equal to centrifugal force then why not earth goes in straight path and why it cannot follow in a circular motion

[@krishnagupta33452]

Centrifugal is not a real force the only real force acting is centrepetal force U will learn more about it in 11th

[@suryashukla4036]

sir ek video bna do angular momentum ke upar pls

[@devendrabarala4155]

Hi sir , My name is Hemant Barala. I am in class 10 .I have a doubt that WHY OXYGEN IS ALWAYS NEEDED FOR COMBUSTION??

[@athvii]

I had same doubt since last year, thanks for this amazing explanation, sir!

[@priteshh4159]

I'm mbbs student..still I'm watching your videos.The way of explaining concepts of physics it's great...

[@whykoks]

Physics is the ultimate science of the universe

[@medicalstudies2356]

@@whykoksno

[@whykoks]

@@medicalstudies2356 then what is?

[@Arkaprava_]

Truly a living legend! 🙏

[@himpandya9274]

Sir next time whenever you make a video to answer any question then please give us a chance to think and comment by asking the que on one day and answering it next day

[@prashanttjaiswal5743]

Video pause kar ke agle din dekh le

[@JahnaviYadav-sw1eb]

Wowwww ❤

[@ABCRishuRanjan111]

Sir ham aap se baat kaise kar sakate hai ❤

[@muhammadahmad-wr9xy]

An other explainition is that , we know according to work energy theoram that when work is done on a body it change the k.E of the body if there is no work then there will be no change in k.E and hence no chang in velocity. This the case here in this question when force is toward center and velocity is along tangent then displacment is also along velocity thus there is angle of 90 between force and displacment and work done is zero therefore change in k.E is zero and hence change in velocity is zero in terms of magnitued

[@csanilkumar5415]

As per the law, mgh÷R = mv^2 ÷ R Or PE = KE Also we know Total energy (mv^2) Therefore on a circular motion mv^2 is always equal to PE+KE Hence Uniform circular motion Centrifugal force is equal to centripetal force but KE is always (1/2)mv^2. Cos 45 = sin45 = (1/√2) Velocity.cos45 = direction v^2 ÷ 2 = direction

[@Abdullah-zv5xj]

Sir ji flexing his Mac book not knowing that Apple may advertise through this video

[@AbhijeetkRai]

Dear sir My self Abhijeet from Bihar Sir I have one doubt in motion chapter Q A man move with some speed in moving train in direction toward train then speed from out side will more similarly a observer obser from outside ,two train one is rest and other is in motion "and light come from both train then speed of light of moving train is more than rest train but we know that speed of light is contant then what can we say speed of light can increase or motion not increase I requested to solve my problem Thank you sir

[@harshdippatilarts4360]

1st attempt paas agya hai JEE main ka

[@Nostalgicholy]

Just curious why didn't he get into IIT and become CEO of some US company

[@SnehaPatel-tx7ug]

Hcv sir op❤❤❤❤

[@DeepakParmar-th2gw]

Namashkar sir I am Deepak ,(class 11th) Sir jab hum ik ball ko horizontally ghumate hai apne upar jo ki string se bandhi hue hai to jab wo Puri tarah straight ho jati hai tab tention ko to mrw²balance kar leta hai lekin us samay gravitational force ko konsa force balance karta hai jisse wo ball niche nahi aati

[@krishnagupta33452]

String kabhi Puri trhe straight nhi ho skti So when string is at some angle with horizontal , a component of tension will balance mg

[@DeepakParmar-th2gw]

@@krishnagupta33452 kyo nahi ho sakti???

[@krishnagupta33452]

@@DeepakParmar-th2gw if stone become parallel to ground then there will be no force that will oppose the weight force of stone hence stone will fall down

[@nabilvlognanded]

Hello sir plsz help me i also have one question and i am very confused

[@Doradoracake390]

Sir please tell me how I start my jee preparation from class 9

[@littlesupport3632]

Sir I have lot of questions and need solution as please explain is neutral wire in a circuit can shok someone if yes or no then why. I know all answers but still thinking solution from you.

[@heeralalpaliwal2971]

Sir What is speed of our ? Earth is revolving around Sun at some speed and Sun is also moving so at what speed we are moving?

[@SambhavJain-108]

In an Young’s double slit experiment , the slits are kept 1mm apart and a monochromatic light of wavelength 0.5mm is used to illuminate the slits . A screen is placed 1 m away from the slits . What will be the distance of - a) 1st bright b) 1st dark c) 2nd bright

[@cbsir2546]

Sir bhautiki ki samjh part2 Kab aa rahi hai..hum bahut excited hai..please tell me sir🙏

[@pbprimeplay]

Same doubt... amazing explanation sir!

[@divergentthinker143]

❤❤❤❤❤❤❤❤❤❤

[@songoku_046]

अरे दादाजी आप का समझाने का तरीका थोड़ा सही लगा हमें।

[@VishalGupta-h1m]

😢

[@bishalbanjara2891]

Nope! we were taught wrong. There is acceleration in the same direction the velocity is directed within the uniform case itself. The appeared instant velocity is actually the consequence as a resultant for two forces, one inward and next at some angle to horizontal to the surface. I have the mathematical proof.

[@ajclasses9455]

I can anyone explain this to a class 10th student in case of circular motion

[@divergentthinker143]

❤❤❤❤❤❤

[@Mohdkaif022]

Sir 12th ke sare chapters ke one shot de dijiye please ❤

[@suddhasattasaha4793]

My question is " Does a charge undergoing acceleration within a gravitational field emit radiation? " I have been thinking about this situation for quite some time since my 11th grade and could not come up with any possible answer. I have also asked this to many physics teachers and professors but could not get a satisfactory response. According to classical electromagnetism, an accelerating charge emits electromagnetic radiation. However this scenario touches upon the intersection of two fundamental theories in physics-electromagnetism and general relativity.

[@Napendra191]

Art student be like-ye to vaigyanik lg rhe hai 😁

[@odishaodisha3496]

Answer ko goli maaro...question hin samajh nahi aa raha

[@ayushkumargupta2488]

Here are one more legend in the earth 🌎

[@jojo-tq6gc]

Good Evening sir🙏 I'm student of 11th . My question is *Why do we prefer thin metallic wires braided together than a thick rod to be used in cranes?* I know braided thin wire provides flexibility to the wire but why do it so and how.

[@suddhasattasaha4793]

My question is " Does a charge undergoing acceleration within a gravitational field emit radiation? " I have been thinking about this situation for quite some time since my 11th grade and could not come up with any possible answer. I have also asked this to many physics teachers and professors but could not get a satisfactory response. According to classical electromagnetism, an accelerating charge emits electromagnetic radiation. However this scenario touches upon the intersection of two fundamental theories in physics-electromagnetism and general relativity.

[@themahmood7309]

At atom level all the physics law breaks......

[@L_Ratio_01]

Can we also use this video's logic to explain what gives the centripedal acceleration in the "ring on spinning rod problem" that we do in questions, as normal is always perpendicular to the motion of the ring and their is no friction in the rod.

[@ishagupta1440]

Sir, when we fall down 2 particles first t=1 sec and 2 nd t=3 sec,then t=3 sec particle reach first in group, it is because of aerodynamic but why we not tell this is because of mass..so why we consider at aerodynamic concept not mass concept and also think is there g more than 9.8m/s^2 .( This particles are not in vacuum)...

[@rachitgupta1632]

Because gravitational acceleration is irrespective of mass and so the 2nd particle should be fall after 2nd than that of 1st particle if air resistance is not there. But it is air resistance which accelerate both with defferent magnitude.

[@suddhasattasaha4793]

My question is " Does a charge undergoing acceleration within a gravitational field emit radiation? " I have been thinking about this situation for quite some time since my 11th grade and could not come up with any possible answer. I have also asked this to many physics teachers and professors but could not get a satisfactory response. According to classical electromagnetism, an accelerating charge emits electromagnetic radiation. However this scenario touches upon the intersection of two fundamental theories in physics-electromagnetism and general relativity.

[@AbhishekNegi-k3p]

❤❤❤❤❤

[@harshdippatilarts4360]

Hi sir how are you?