sir apke karan mera physics best ho gya ,isi karan sab sub padhne me man lag gya or aaj engineering kar rahe h.sir I'm very thankful so much...ham apko kavi nahi bhul payenge😐
Sir M aapke liye kuach krna chahta hu 😊😊 Kyaa karuu ???😢 Apki her video ko like krta hu mere sabhi account se subscribe bhi karr diyaa.😅 Or kya kar skta hu m ?? 🙏🙏🙏
44:00 sir a question? If I throw an object vertically upwards the force on it (only gravity, neglecting air resistance) is downwards and it's displacement is upwards . So work done on it is negative, which should mean that the object has lost energy (as when work is done on a body it gains energy) but the energy (total energy that is total mechanical energy ) stays the same. How is it possible sir?
Sir Gravitational force ki direction to dono taraf hogi na. Towards body and toward earth. Isn't it force due to gravity which acts towards the earth when body is moving upward
that is gravitational and is at right angle to diaplacement then no impact on body but if body is in air then work done by gravity will be positive since force and displacement are in same line and in same direction work done will be positive hope that was helpful
if w=force * displacement in direction of force ( this formula shows that work done when displacement of a body in the direction of fore but when we talks about -ve work their is a force and displacement in opposite direction then how can we say it is work.. according to formula i think its not work ...
if w=force * displacement in direction of force ( this formula shows that work done when displacement of a body in the direction of fore but when we talks about -ve work their is a force and displacement in opposite direction then how can we say it is work.. according to formula i think its not work ...
sir apke karan mera physics best ho gya ,isi karan sab sub padhne me man lag gya or aaj engineering kar rahe h.sir I'm very thankful so much...ham apko kavi nahi bhul payenge😐
Sir ...... very very thnks to u from core of my heart....... aaj aapki wjh se me lecture bnne ja rha hu.....aapka dil se bhut bhut aabhar sir.....
Sir app ek aise teacher h jiske bare me kuch bhi kha jaye..wo km h...apne hi mera physics is lockdown me clear kiya h....
One the super and fantastic work Sr
Very helpful video sir Thank you so much ☺️
Who knows now where is this great legend on 9 may rip sir😭😭😭❤️❤️❤️
Really very helpful ...thanks sir
Sir M aapke liye kuach krna chahta hu 😊😊
Kyaa karuu ???😢
Apki her video ko like krta hu mere sabhi account se subscribe bhi karr diyaa.😅
Or kya kar skta hu m ?? 🙏🙏🙏
Same here
NYC.sir.
Fabulous lecture
Nice bahot alaw
Really appreciated you and your work Sr
Best understanding sir
Sir if we hit a chair it having some magnitude & directed towards the direction of the applied force
44:00 sir a question?
If I throw an object vertically upwards the force on it (only gravity, neglecting air resistance) is downwards and it's displacement is upwards . So work done on it is negative, which should mean that the object has lost energy (as when work is done on a body it gains energy) but the energy (total energy that is total mechanical energy ) stays the same. How is it possible sir?
Sir how can we know that where we do the dot product & where cross product of two vectors•
If product made a vector quantity then we do cross product and if product made scaler quantity then we do dot product
If body is displaced without any application of external force, doesn't that known as work done by the body/system?
How could there be no work done?
Best
thank u sir, nice explanation
Please upload for class 12th also
Sir why don't we define work as a vector quantity and call the direction of work the direction of displacement? It makes sense
Sir Gravitational force ki direction to dono taraf hogi na.
Towards body and toward earth.
Isn't it force due to gravity which acts towards the earth when body is moving upward
@@PradeepKshetrapal sir thats force due to gravity and not Gravitational force
that is gravitational and is at right angle to diaplacement then no impact on body
but if body is in air then work done by gravity will be positive since force and displacement are in same line and in same direction work done will be positive
hope that was helpful
@@arsalankhan8245 that is exactly what i am saying.
To apply a force gravitational a body is needed and it produce an effect on the other body.
Is there any cat at 47:18
nice sir
Sir.daily 2 videos upload kareye plse
Haan.......
if w=force * displacement in direction of force ( this formula shows that work done when displacement of a body in the direction of fore but when we talks about -ve work their is a force and displacement in opposite direction then how can we say it is work.. according to formula i think its not work ...
Sir polytechnic metallurgy branch ka class dijiye
sir jb earth move kr raha h to is na work don
????
Sir I love you
We gain more knowledge ...
We requestued with more obedience to Accept Islam plz
Tell in english onlyy sirr dont useee hindhi unable to understand
Miss u sir
Y
sir plse reply soon
Sir 12 th in Hindi me pdao
sir plse reply
Great teacher
If body is displaced without any application of external force, doesn't that known as work done by the body/system?
How could there be no work done?
if w=force * displacement in direction of force ( this formula shows that work done when displacement of a body in the direction of fore but when we talks about -ve work their is a force and displacement in opposite direction then how can we say it is work.. according to formula i think its not work ...