7 sinf 11-mashq yechim

7-sinf 11-mashq. 1. quyidagilarni nyutonda ifodalang: 5 kn, 54 kn, 0,04 kn; 0,04 mn; 25 mn; 4 mn; 120 mn. 2. oyda kosmonavt qo‘lida yuk osilgan dinamometr bilan turibdi. dinamometr 1,7 n ni ko‘rsatmoqda. yukning massasi qancha bo‘lgan? oy sirti uchun ga teng. ______________ oydagi og’irlik kuchi; (1)-formuladan massani topsak; 3. aravacha qaysi tomonga harakatlanadi? __________ aravachaga o’ng tomonga 3 n va chap tomonga jami 3 n kuch ta’sir etmoqda. demak aravacha harakatlanmaydi. 4. yuk dinamometrga ilinganda, u 5 n ni ko‘rsatdi. dinamometrga qanday massali yuk osilgan? ______________ yerda og’irlik kuchi; (1)-formuladan massani topsak; 5. bolaning og‘irligi 320 n bo‘lsa, uning massasi qanday? ______________ yerda og’irlik kuchi; (1)-formuladan massani topsak; 6. massasi 4 tonna bo‘lgan ...

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