 So you are like a boy pushes a book kept on a table by applying a force of 4.9, find the work done by the force if the book is displaced through 30 centimeter along the direction means remain positive 3 5s of 15 3 4s are 12 and 113 1 minus 1 will remain one will go with this so 1.35 2 or 1.35 Newton meter no smile bachha good word sir you mark 1.35 Newton I mark 1.35 Newton as well thank you so you didn't mark mine yes sir you didn't mark my mind I was a oh boss are you looking at a 1.35 joule correct 1 joule point 35 I'll get you sorry those mistakes are Newton meter square no no no no no what happened other job but should we drag now this is some some sort of question for NTSC right if not in the solution but at least in order to read it takes time okay let's see I don't know I haven't even looked at it and solved it so guys you know that the speed of sound or any wave in that matter is its wavelength multiplied by the frequency wavelength is given as 20 centimeter and frequency is given at 3 kilo Hertz so it will come out to be yes or no fine 600 meter per second now distance is equals to speed into time speed into time so 3000 meters or 3 kilo meters welcome anyone with doubt sir I accidentally read 6000 divided by 10 is 60 very good such a brave thing mark my answer so Pratham did it work for you sir so should I mark sir you mark for other people sir 3,000 is correct no 3000 is the answer they are God they are answering in a system right sir mistake where is 3000 kilometer I can't find 3000 kilometer sir even what sir it was down sir to the right yes they're only top right this one this is 300 meter sir go one call and look there on the sir 2000 right 300 20,000 2,000 surely not the answer sir I have no idea what I've typed them last I remember typing 3000 kilometers but what happened Arthur you missed it Raghav ko patai nahi abi yaha pe kya bahara Raghav tu nahi memory loss I don't know I remember getting the right answer like see yeah bachha question pustena at times NTSC may literally watch out and look at their spelling of horse power yet o kaafi a jeeps answer I 1.3434102 rounded off to 1.341 so one horse power is how many watts guys over the chart everyone 746 watts I don't know so 1 watt is equals to 1 upon 746 horse power 1 kilowatt is 1000 by 746 right or not so so if you consider the renometer as 750 if you consider the renometer as 750 then options will help you 25 30 I don't know 25 3s and 4s 1.33 props right see in mcq multiple choice question you have to take up the help of options yeah let's see so 1.34 correct 1.34 some extra decimals correct correct correct 3 5 I'm giving it up 1.3 is not equal to 1.341 if we would have extended then we might have got so you take for one no I haven't it is asking me to take I have not if this was a time bound exercise those who have typed that full extanza is it yeah it is so continue yeah good reasoning I urge you so how did people guess it right some people might have guessed it right I'm there are jadugar people in our company right you don't know all our companions are jadugar play what is the difference with third and fourth in fourth kg is also in denominator third is the answer momentum is mass times velocity mass is kg the velocity is meter per second so kg meter per second Newton per second is also our answer wrong Newton second is an answer right okay fill it up mass mass mass I am good numb next question guys now last I don't think you corrected sir sir I don't think you corrected your answer but I'll have to go back after this question I'll go back okay okay fine sir simple harmonic motion is the motion of a pendulum four nothing else only total energy remains constant neither restoring force nor kinetic nor potential energy all keep on changing sir is restoring force just some scam word or is there something no sir it's actually a word so suppose simple harmonic motion can also be obtained or observed in a spring okay so with spring the more you stretch the higher it tends to get stringed yes or no so restoring force is that force which pulls any stretchable body back to its initial shape so the more you disturb it higher goes the restoring force what's exactly happening with you guys right if you exert more force than the restoring force it will break right under there is a word called as under elastic limits if you cross elastic limit it will reach breaking point yes or no so yes good okay I have to go to previous question and check if I have missed someone's mark sir I mark four and you mark my nose this one here have I missed someone's yeah here what happened okay thank you thank you thank you it's like when you try to shut your mind up by flooding it with it goes guys now the last six question are sol pa heavy solve them with precaution sol pa heavy questions so this needs a sol pa knowledge of trigonometry sol pa knowledge of trigonometry yeah so there might be a lack but I guess time doesn't do you receive time also run out like or you receive exactly same duration yeah so let's see so guys final velocity is the slope tan 60 degree initial velocity is tan 45 change in velocity upon time got it everyone gi got it or not sir but tan for 60 is opposite by adjacent so don't you also have to calculate the adjacent side like that so there are numerical values of 0 30 45 60 and 90 oh yeah yes I understood understood understood okay so alpha will be the right answer wait so this is a distance time graph not a velocity time graph right in order to calculate velocity we need a slope got my point okay sir sir but I have a doubt in this question please how do you know that tan 45 was the initial velocity because it is given that the slope initially was 45 after one second it became 60 and the word was in this duration that's why divided by one only we do not know when the motion is started right I need to understand see the question stated we have not started the question stated better the distance and our particle makes a angle of 45 degree with time axis case one after one second it goes to 60 degree what is the average acceleration of the particle during this time so in this given time interval of one second what is the variation so variation is from 45 to 60 got it sir but then for the velocity initially velocity to be one then shouldn't the opposite side be one how do you know that the value is one and slope is calculated by a tan theta okay sir but then which um what represents the velocity in a distance time graph the slope in a distance time graph the slope represents the velocity oh yes sir understood understood normal reaction normal reaction is what acts from the surface on object against its weight yes sir okay now here normal reaction can be against any force here they are asking horizontally not vertically good very good so guys look here if this is the point where normal has to be calculated then the force applied on this side will be equal to the normal reaction okay now what is the force applied on this side is the force experienced by 2 kg by application of a 20 Newton force the total acceleration generated in the system is 20 by 6 the total fell force on a 2 kg is mass times acceleration 40 by 6 that is the force experienced by 2 that will be the reaction force okay 20 by 3 everyone got it sir how did you get acceleration is 20 by 6 total force upon total mass oh yes sir but then the total force exerted on 2 kg between um be more than 20 Newton sir because it no how come 20 Newton is the supply for 4 kg will use some part the remaining part will go to 2 kg yes sir okay so what is normal reaction can you again explain normal reaction beta c again simple simple definition if I ask please a surface there is a block kept right or not what is the normal reaction on the block so your answer is as the block of mass is mg normal reaction is also mgs or no yes sir i understood i understood so okay who has done so much to please god lemon milkshake will not remain milkshake okay it will get converted to something between curd and paneer it's just gross so i'm pretty sure it's said with spinach but i did not even read okay good good good quickly i wanted to give just 10 20 seconds to it but it's okay it don't even bother you at the calculation part means if you know 100 centimeters one meter then your answer is there see guys oh yeah maybe 50 meter per second is the speed is wavelength multiplied by frequency wavelength is 100 centimeter if i convert it to meters it will become one so 350 hertz is the answer bravo bravo no pinch of salt so i'll not show you the leaderboard quickly okay all right quickly five seconds literally five seconds i'm legit so it is newton meter square per kg square bravo only lemon curd won't go good so continue yes even i'm hungry i was reading the leaderboard have you guys seen the old old ads of co-cola when america like america was the random visitor and all no quickly guys you should know nothing but what is 10 into 2 and what is 16 by 2 okay okay miss click can you reset it or something i'll try what should i reset to sir shivam so then you have to give the discussion again sir unfair advantage what which unfair advantage so whenever you try to reset so won't we have to give discussion again as well sir no shivam in the lma input have feed it in something else so it's like the answer is d right let's see i i don't know what is the answer so s is equals to ut plus half at square 28 delta delta garam masala yeah it's not 28 224 by 16 hot chili milkshake chili milkshake is not lassi lassi is legitimately good yeah see versus mutha i'll go with lassi if it's afternoon excuse me sir 224 by 16 is equal to 14 sir so that answer should be so i'm not sure i have not i haven't learned it right i know i forget today in san kohad rizad abhi milzai toha agar wo api wo toh kya baat sir no question only reya kya ho gaya itta sai question jahra so show the question quickly can you guys respond here's the question on your screen sir there was not enough time to the question at this time they go work force and time work basically walk and time force a force cancel good guys like let's let's let's fill up this and then look at the final little board yes tc so that just after the centimaryl rush to the restaurant so which restaurant so there is this in hsr if if you can visit dhili to dakshin is a if you want to go like not a very not very leisureless but average plus dhili to dakshin is good so let's look at the final leaderboard karan and shivam tug of oh shawash shawash shawash karan very good very good very good very good guys charlotte thank you very much for your time guys thanks a lot thanks a lot bye bye thank you sir bye thank you sir thank you sir