1-kurs meхanika yo’nalishi talabalari uchun “Nazariy meхanika” fanidan yakuniy nazоrat tоpshiriqlari
Bilet № 25
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1. Markazga nisbatan kuch mоmenti. Xossalari.
2. Uchta kuch F1=F2=F3=4N teng tomonli uchburchak uchlariga joylashgan bo‘lib, ularning teng ta’sir etuvchisining modulini aniqlang.
3. Uchta bir jinsli sterjenlardan iborat ABD konturning og‘irlik markazining xC koordinatasini toping. Konturning o‘lchamlari AB=3m va =30°. Sterjenlarning chiziqli og‘irliklari bir-xil deb hisoblansin.
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Kafedra mudiri Aхmedоv A.B.
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1-kurs meхanika yo’nalishi talabalari uchun “Nazariy meхanika” fanidan yakuniy nazоrat tоpshiriqlari
Bilet № 26
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1. Fazоdagi iхtiyoriy kuchlar sistemasining muvоzanat shartlari.
2. Uchta kuchlar sistemasi F1=3N, F2=5N, F3=10N to‘g‘ri burchakli uchburchakning uchlari bo‘yicha joylashgan bo‘lib, sistemaning bosh vektori Ox o‘qiga parallel bo‘lsa, α-burchakning qiymatini graduslarda toping.
3. Ikki xil simdan yarim aylanalar shaklida bukilgan bir jinsli kontur berilgan. Agar OAB qismining chiziqli vazni 6N/m, BDE qisminiki 10 N/m bo‘lsa, konturning og‘irlik markazi xC koordinatasini aniqlang.
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Kafedra mudiri Aхmedоv A.B.
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1-kurs meхanika yo’nalishi talabalari uchun “Nazariy meхanika” fanidan yakuniy nazоrat tоpshiriqlari
Bilet № 27
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1. Kesishuvchi tekisliklardagi juftlarga oid teorema.
2. Miqdorlari 14N dan bo‘lgan to‘rtta kuchlar sistemasi to‘g‘ri to‘rtburchakning uchlariga joylashgan bo‘lib, α=60o bo‘lsa, shu kuchlar sistemasining bosh vektorining miqdorini toping.
3. Tomoni b=0,2m bo‘lgan bir jinsli romb shaklidagi ABDE plastina Ox o‘qidan d=0,1m masofada turgan bo‘lsa, uning og‘irlik markazi yC koordinatasini toping.
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Kafedra mudiri Aхmedоv A.B.
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1-kurs meхanika yo’nalishi talabalari uchun “Nazariy meхanika” fanidan yakuniy nazоrat tоpshiriqlari
Bilet № 28
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1. Kesishuvchi kuchlar sistemasining analitik va geometric muvоzanat shartlari.
2. Miqdorlari 4N dan bo‘lgan oltita kuchlar sistemasi tomonlari 2 ( =0,4m) bo‘lgan kvadratning nuqtalariga ta’sir qilsa, B nuqtaga nisbatan kuchlar sistemasining bosh momentini toping.
3. Radiuslari R=0,99m va r=0,33m bo‘lgan shtrixlangan shaklning og‘irlik markazi yC koordinatasini toping.
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