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Because finding the angle is equivalent to finding the direction. Alpha is the angle between A and R. Alpha tells you w.r.to A what is the direction of R.
They are helpful. Like if the angle between forces or any fields is 60deg, 90deg or 120deg straightaway we can write the answers. Those points are useful in laws of motion, Gravitation, electrostatics, magnetism, wave optics, AC and oscillation chapters
No. For example if the angle between two vectors of equal magnitude is 90 degree then their resultant is root2 times magnitude of the vector. But their dot product will be zero. (Since cos90=0)
You can understand like this also 👇 When you add two vectors you get "RESULTANT" When you multiply vectors you get "PRODUCT" Hope I have made the things crystal clear.
@@sharathgoresir sir 1. Find the magnitude of resultant of two vector A & B in terms magnitude and angle between theta.. 2. Optain the expression magnitude and direction of two vector acting on point 3. Derive the expression of the magnitude and direction the resulted two vector .. Sir these 3 qus are same ?
in this situation since hypotenuse is known (magnitude of B will the hypotenuse in triangle SNP) we are using sine and cosine functions (if adjacent or opposite sides are known then we can use tan function) 🙏🙏
Hi dear students,
Go through the link below to get video and text solutions of Important questions, video solutions and text solutions for your midterm and annual board exams 👇
wp.me/pdFWXd-3E
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Thank you sir 🙏🏻 It was helpful ❤
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Thank you very much
Tommorow is my final exam and finally understood heartedly thank you so much sir ❤️🥰
You are welcome 🙏
Bro same for me tomorrow final exam
@@dragoff8955 for me day after tomorrow , so happy that there is someone who is a worser state than me
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sir please be uploading still more videos.
ur explanation are easy to understand
Sure. Thanks for encouragement ❤️
Sir please...🙏🏻upload each and every topic from intermediate 1st year physics....
ur explanation is too easy to understand...😍
Sure
I understand sir because you explain in English
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Thank you 😊
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Tq sir 🥺 finally understand
You are welcome 👍
Very useful....
Wish u teached us mathematics like this
I watch another sir video I can't understaood but now I understand
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Keep use only English language .thank u
🥲 but this is ಕರ್ಣಾಟಕ (ಕರ್ನಾಟಕ)
@@Ryuzaki_9081 Assalamualaikum Ramadan Mubarak
😶
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Tommorow i have my exams....
You're welcome 🤗
All the best for your exams
Very helpful
Thank you
Sir can you upload the derivation of total efficiency of Carnot's heat engine??
I also completed 400 like
Good explanation 😍
Thanks a lot for your appreciation 🙏
Sir to 5:40find direction why to find alpha please reply
Because finding the angle is equivalent to finding the direction.
Alpha is the angle between A and R. Alpha tells you w.r.to A what is the direction of R.
Vibrent moodbidre jai ❤❤
sir i have a doubt u did this derivation for parallelogram law of vector addition .
will it also come for triangle law of vector addition ??
brother obviously it will come, triangle and parallelogram are just two methods to find resultant and indeed they give the same result
Super I understanded the problem
Sir u are directly from heaven sir
U really helped me
Tomorrow is my exam
All the best dear
Super explanation sir
Thanks sir
Very nice explaination sir 🥰. Thank you ☺️😀
You're welcome. All the best for your exams
Nice explanation sir thank you
Tqsm 🙌
Supper sir tq u...... ❤️❤️❤️
What is equation of magnetic and directions
Sir those u told after'expression those will helpful for neet or not
They are helpful.
Like if the angle between forces or any fields is 60deg, 90deg or 120deg straightaway we can write the answers.
Those points are useful in laws of motion,
Gravitation, electrostatics, magnetism, wave optics, AC and oscillation chapters
Sir ur dope!!🙌
Sir have one probelm related to this topic
Please WhatsApp 8970797028
@@sharathgoresir ok sir
Thank you sir from davanagere
Sir in this method we can do in exam they will give me marks or not sir
Definitely. It's the correct method. You will get marks don't worry
Ok
Tq sir
Sir I have a question. resultant of two vectors can also be given by the dot product of two vectors?
No.
For example if the angle between two vectors of equal magnitude is 90 degree then their resultant is root2 times magnitude of the vector.
But their dot product will be zero.
(Since cos90=0)
You can understand like this also 👇
When you add two vectors you get "RESULTANT"
When you multiply vectors you get "PRODUCT"
Hope I have made the things crystal clear.
Thank you sir ☺️
You're welcome 😊
❤
Tnq
You are welcome
@@sharathgoresir sir
1. Find the magnitude of resultant of two vector A & B in terms magnitude and angle between theta..
2. Optain the expression magnitude and direction of two vector acting on point
3. Derive the expression of the magnitude and direction the resulted two vector ..
Sir these 3 qus are same ?
@@swathipoojary4248 yeah they are same
@@sharathgoresir
Tqsm sir 🙏
👍🏻💯
thank you so much sir
😊
thanks!
Why cos and sin only why not tan and cot
in this situation since hypotenuse is known (magnitude of B will the hypotenuse in triangle SNP) we are using sine and cosine functions (if adjacent or opposite sides are known then we can use tan function)
🙏🙏
@@sharathgoresir tq so much sir
Hi my name is also sharath
👍👍🙏
@@sharathgoresir sir what is equation of magnetic and direction please tell me sir
@@dasarinuthanprasad9825 "magnitude of resultant at 5:29"
And
"Direction at 6:35"
Cant understand
Very easy bro first of all learn Pythagoras theorem and then watch this again...
Hindi me btao
But noo sports too bad 😢😢
Are you gore sirs son
Use himdi bkl
I didn't understand anything😣😜
Please watch once again from the beginning.
Message 8970797028 for doubts
Are you son of gopalakrishna gore sir
@@JinsroJess no
@@sharathgoresir ha ok
thank you sir