Nazariy mexanika. 2,3 семестр. 1-вариант Jismning burchak tezlanishini aniqlovchi ifodani ko’rsating

NAZARIY MEXANIKA. 2,3 семестр. 1-вариант
1. Jismning burchak tezlanishini aniqlovchi ifodani ko’rsating
A) B) C) D)
2. Elastiklik kuchi ishining ifodasini toping
A) B) C) D)
3. Ko’zg’almas o’q atrofida aylanuvchi jism nuqtasining xar ondagi chiziqli tezligi qanday aniklanadi
A) B) C) D)
4. Nuqtaning koordinata usulida berilgan xarakat tenglamalariga ko’ra uning traektoriyasi topilsin x=5-4sin4t; у=3-4cos4t; (x-5)²-(у-3)²=4²
A) Parabola B) Giperbola C) Ellips D) Aylana
5. Sistema kinetik energiyasining o’zgarishi xaqidagi teoremaning ifodasini ko’rsating
A) B) C) D)
6. Qanday xarakatga qo’zg’almas o’q atrofidagi aylanma xarakat deyiladi
A) Xar qanday xarakatiga
B) 3 ta nuqtasi quzg’almasdan qoladigan jism xarakatiga
C) ikkita nuqtasi quzg’almasdan qoladigan jismning xarakatiga
D) istalgan 4 ta nuqta si doimo kuzgalmasdan koladigan jismning xarakatiga
7. F=100 n, h=0,1 m bo’lsa, kuch momentini toping
A) 100 Nm B) 10 Nm C) 50 Nm D) 5 Nm
8. Jism burchak tezlanishining o’lchov birligini ko’rsating
A) rad/s² B) m/s C) N D) kg.m/s
9. Qachon bog’lanishdagi jismni erkin jism deb qarash mumkin
A) bog’lanishni reaksiya kuchi bilan almashtirib
B) bog’lanishni aktiv kuch bilan almashtirib
C) bog’lanishlar sonini oshirib
D) bog’lanishdagi jism katoriga erkin jismni kushib
10. Nuqta dinamikasining asosiy tenglamasini ko’rsating
A) B) C) D)
11. F kuchning x o’qdagi proeksiyasi ifodasini toping
A) B) C) D)
12. Nuqta kinetik energiyasining ci birliklar sistemasidagi ulchov birligi nima
A) kg.m²/s² B) kg.m 52 C) m/s 52 D) Nm