WORK AND ENERGY CLASS 9 | FULL CHAPTER | CLASS 9 CBSE

work and energy
work and energy class 9
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work energy and power class 9
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[Quotex_trader___]

Work done = change in kinetic energy
Final K.E -- Initial K.E = (½mv² - ½mu²)
= ½m (v²-u²)
=½ 1500 (100-400)
=½ (1500×300)
= 450, 000÷2
= 225, 000 🙂

[CHO.GOOGLE]

*38:18*
*ANSWER*
*The energy consumed by the bulb is 0.36 units*

[zahidbhatti]

😜😂😂FACT : Sir parthe parthe 📖📖 bhi WORK hota hai, kyunki 'WE FORCE OUR BRAINS AND EYES TO NOT SLEEEEP' 🤣🤣🤣🤣🤣🤣

[vineetyadav]

Given : t=6 hrs
P=0.06 kW
Thus energy consumed per day is:
E=Pt=0.06×6=0.36 kWh=0.36 units

[iqooneo]

Last question answer is...
E=power × time
E= 0.060×6
E= 0.0360kwh
And then,
Ikwh = 0.0360÷1000w
1kwh= 0.36 unit

[aayushiyadav]

Energy = Power × Time
= 0.06 × 6
Energy = 0.36 kWh
Energy = 0.36 unit

[Rahulkumar-tdbg]

@Inos Study

I'm saying true that I didn't understand online study but when I started to watch the science topics on your YouTube channel . Really I understand the whole concept in just 40 minutes .
Thanks for wonderful video 😊

[knownbyhimanshu]

🧐 important in low time - 1.25x speed
Very important in low time - 1.75x speed😋
You have not time it's urgent - 2.x speed😂
Faltu ka time meaning ( time hii time ) - 0.25x speed 😋🥰

[Jahedkhan-pd]

But sir that 2question you gave after the topic of work done the anwer will be 0 because that porter lift the lagguage on his head so force is perpendicular to displacement.

[syedaaimanmanzahquadri]

Superb👏👍
I understood the concept very clearly, Thanks!!

[ravimoolya]

Final K.E. - Initial K.E.
=1/2 mv^2 - 1/2 mu^2
=1/2*1500*20^2 - 1/2*1500*10^2
=1/2*1500*400 - 1/2*1500*100
=300, 000 - 75, 000
=225, 000 joule

[mujanworld]

Thank you sir
Kl mera exam h science ka and mere dimag m kuch nhi aa rha tha pr aapki video dekh kr smjh aa gya thank you

[armaan]

Thank you! It was quite easy to understand!

[jisankhanvlogs]

You are a best physics teacher in the world 🌍

[Myworld-dt]

Best example forever (of sinchan) Thank you so much 💜

[rohitchouhan]

Last question ka answer hai energy = power × time =0.6×6 = 0.36 KWh = 0.36 unit

[Gauravkumar]

Nice bro kal exam hai 10baje raat ko padh rahe he

[Yadavyash]

Correct answer of K.E. is 225000J 16:30

[SIDDIQUI-kp]

work and energy
work and energy class 9
work energy and power
work energy and power class 9
work and energy class 9 full chapter
work and energy one shot video
class 9 physics
class 9 cbse
inos study

[dheryaguleria]

U = 10m/s. V=20m/s mass =1500
Work done=change in kinetic energy
= Final k.E- Initial K.E
=½mv². -½mu²
=½m(v²-u²)
=½ 1500 (100-400)
=½ (1500×300)
=450, 000÷2
=225, 000 ans