Numerical chapter 6 work and energy physics class 9 KPK boards .

Numerical chapter 6 work and energy physics class 9 KPK boards .
Ehtisham Tariq lecturer in Warsak Model School and College Peshawar.
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1) determine the work done in each of the following cases (a) kicking a soccer ball forward with the force of 40 Newtons power distance of 15 cm (b) lifting a 50 kg barbell straight up 1.95 m
2) calculate the the velocity of a 1.2 kg falling star (meteorite) with 5.5 multiply 10 raise to the power 8 joule of energy
3) calculate the gravitational potential energy of a 2000 kg piano (a) resting on the floor (b) with respect to the basement floor 1.9 m below
4) an elevator weighing 5000N is raised to the height of 15.0 m in 10 second how much power is developed
5) what power is required for ski-hill chair lift de transports 500 people average mass 65 kg per hour tov increased elevation of 1200 m
6) how long will it take 2750 watt motor to lift a 385 sofa set to A6 store window 16 m above
7) how much work can a 2 HP motor 2 in 1 hour

[Allgaming-pwyp]

Thank you sir may Allah give you long life

[hadifahadifa]

Thank you help me very much for physics

[mariamiidrees]

Thank you sir. Kal mera paper hai aur mai bohat confuse ho rahi thi abhi video dekhi sab clear hai ab

[iftikharshah]

Thanks you help me very much in physics and maths

[pride]

Sir how to take exponent in calculator

[abdurrehmanhayat]

Sir in question no. 2 in end how we will take the square root and multiply the exponent

[Ahmadali-mccq]

Thanks for the sir thank you so much ♥️💖❤️💓💕💯💯💯💯💯💯💯😘

[mariamiidrees]

AssalamuAlaikum Sir. Ky ap guess papers provide krte hotay hain?

[mariamiidrees]

Sir Mera 37240 answer arha hai papers mai koi issue toh nhi ho ga?

[ByEman_]

Sir how to find exponent in calculator.