Law of moments || 11th physics practical #11thphysics @a2zpractical991

Hello friends and welcome to my channel, so friends I'm Sachin Shukla and you are watching A2J Practical. So, friends, today's experiment is activity number 2 of 11 physics. Law of momentum So basically what we are going to do in this How is it going to be practical? I will explain everything to you. Let me tell you one more thing, that in this I have uploaded the experiments for Class 11 and Class 12 Chemistry. Go take a look at it. And let's begin the experiment And please, friends, please support me So that I can get motivated to make videos for you Let's start the experiment. So you will see in front of me that this is a scale. And I have suspended it I have suspended this object here. Now, friends, I've posted a thread here So it's not necessary that you place it in the middle. What you have to do is You must balance this meter scale according to this thread. So see if I keep it like this now It's going nowhere. But until you don't balance it You can't start practical So you move the thread back and forth. See what happens It's not happening here. Friends, now it's balanced. See, it is completely balanced. See, this thread is balanced. Neither side is greater nor is the other side lesser. So you have to balance it. Friends, this is my bob You are seeing So what you have to do is You have balanced it. But you must keep the bob at least 10 cm high. You can keep it as long as 5 cm or 6 cm So basically, where will I keep Bob? I will keep 10 cm Means if it is 50 So how much will 10 cm be? 40 So I suspend it here at 40 How far will it be from here to here? 10 cm Now what you have to do You have to wear this mask. You are seeing this mask And what do you have to do with the mask? You have to suspend here What you have to do here Basically you have to suspend So I am suspending anywhere here Like I'm fading out here Now I have suspended it here I have kept it at 10 cm from here. Now what you have to do You have to balance this scale How to achieve balance You are completely unbalanced. Clear So what will I do I'll take it here Clear And I will take it here So I will check if it is balanced I'm leaving now. So once again it is not balanced. So I take it a little further Is it balanced from the front? So I'm taking the mask a little further Again nothing is happening So for now, it is balanced here. Friends are getting balanced here So you see, it is completely balanced. So you have to do exactly like this You have to take this weight to such a place. Where this scale is balanced You must keep it constant at 10 cm. Now what I will do I will measure from here. Like this is 50 This is 52 53 So how far is it from here? One, two, three, four, five, six, seven Clear So this 7-distance is coming in here That means this is 10. And how much is my distance for 50 7 is coming Now you have to do the same You have to leave it like this And I will write here How much did I get for 50 grams? 7 cm came Okay Now what I will do again I will keep it constant at 10 But here I will add 50 grams again So I will add 50 grams again And I will see how much it comes So for now, this side is going more So I'll bring it closer. Friends, you're seeing it is balanced. So for 50 grams First 7 was coming for 50 Again 50 came So how much is coming for 50? 1, 2, 3 So how much is coming for 50? 3 cm is coming If I add another 50 That will amount to a total of 150. So basically I know I will have to take it further. Okay 2 cm is coming So how much is coming for 150? 2 cm Okay So this is it You have to do this experiment. You have to keep the bob here At a distance of 10 cm You can keep as much as you want But what you have to do Every time, increase by 50 to 50 grams You can also do 50-60 So as soon as you have to keep it here Then always look along this axis Whether it is taking support or not This scale should not be slightly crooked. As soon as it takes support You have to take the same cm From here to here Distance What to do Measure out That is your R2. What will happen to you? R2 will happen Okay Your activity number 2 is visible here Activity number 2 Law of Momentum As I conducted the experiment What is the formula? M1 R1 is equal to M2 R2 You must have seen Bob. Where I kept 10 cm here And this weight for weighing I had suspended here Whose distance R2 was always changing. What happens in this You must keep Bob fixed. And as you increase the weight The reading on this meter scale How much does it cost? Less So let me tell you some points here What do you have to write? So you are seeing Fixed distance of the unknown mass from the center of gravity at R1 So at R1 How much I kept you at a fixed distance Bob You saw 10 cm After that Mass suspended with hanger So how much was I hanging on the hanger As you can see I had taken 50 g. Okay So how far was the distance? 7 cm Second I took I added 50 more So it was 100. Its distance was drawing near. 3 cm Third I took I added 50 more So it was 150. Its distance was drawing near. 1.5 cm It's 1.5 cm. This is not 2 Second M2 R2 How to calculate You have to multiply these two M2 and R2 350 You will receive 350 Multiply it 300 Multiply it 225 Unknown How to get M1 You are seeing the formula here M1 is equal to M2 times R2 divided by R1 What is M2? You know For 50 50 into How much is R2? R2 arrived. 7 Divided by R1 How much will R1 get from here? 10 Keep 10 You will calculate it. You will receive 35 How much will you get? 35 You have to do the same for this. For this I calculated it. How much do I have? 35 Same You have to keep Instead of M2 100 Instead of this 3 Divide it From 10 You will receive 30 Same For this Divide it From 10 How much will you get? Again 22.5 How to get the mean Here is written Mean mass Here is written Mean mass How to calculate Mean mass Add all three Divide it by 3 All three Add 1, 2, 3 Divide it by 3 You will receive Mean 29.16 Now Let's get to the answer. The unknown mass of the body M1 How much will come? 29.16 How easy Experiment Friends Please support me Like this video So that I can make Many videos for you I should get Motivation So Please subscribe Thank you