B “Tasdiqlayman” o’quv ishlari bo’yicha direktor movini I. B. Qobilov

Sinov savollar

1.Kaysi xolda ish bajarilishini ish formulasidan foydalanib ayting.

2.Kuvvat formulasi nimadan iborat?

3.Ish va kuvvat birliklarini aytib bering.

 

25- mashk

1. Massasi 100 kg chana (odam bilan birgalikda) ishkalanish koeffitsienti 0,05 bulgan muz ustiga 5 m G`c² tezlanish bilan xarakatlanib 10 s vaktda kancha ish bajaradi.? (υ₀q0) J: 18,7J

2. Ogirlik kuchi 10000 N bulgan avtomobil ishkalanish koeffitsienti 0,15 bulgan yulda tugri chizikli tekis xarakat kilib 100 m yul yurganida kancha ish bajaradi? J: 15×10⁴ J

3. Agar jism 10 kJ ish bajaraganida 300 metr yul yurgan bulsa,jismga kancha kuch ta’sir kilgan? J: 333 N

4. Jism 500 J ish bajarganida ta’sir kiluvchi kuch 20 n bulsa, jism kancha masofa yurgan? J: 25 metr.