Statikaning asosida isbot talab etilmaydigan, aksioma deb ataluvchi boshlang'ich haqiqatlar to‘plami yotadi. Bu aksiomalar tajriba va kuzatishlarning natijasidir. Aksiomalarga asoslanib

t-Ta’sir chiziqlari bir nuqtada kesishuvchi kuchlar sistemasi kesishuvchi kuchlar sistemasi deb aytiladi. Agarda kuchlarning ta’sir chiziqlari bir tekislikda joylashgan (joylashmagan) bo'lsa, tekislikdagi (fazodagi) kuchlar sistemasi deyiladi. Ularni ta’sir chiziqlari bo'ylab О nuqtaga ko'chirish mumkin bo'lganligi tufayli, kesishuvchi kuchlar sistemasi bir nuqtaga qo'yilgan kuchlar sistemasi bilan almashtiriladi Kuchning boshi hamda oxirini biror o'qdagi proyeksiyalari orasiga joylashgan, tegishli ishora bilan olingan, kesma uzunligiga teng bo'lgan skalyar miqdorga kuchning o‘qdagi proyeksiyasi deb ataladi. Kuchning o'qdagi proyeksiyasi musbat deb qabul qiiinadi, agar proveksiya boshlanish nuqtasidan oxiriga qarab ko'chishi o'qning musbat yo'nalishi bilan hamohang bo'Isa va manfiy, agar qarama- qa rshi b o ‘lsa. Berilgan F kuchdan О nuqtaga nisbatan olingan kuch mom e n t i deb, kuchmiqdorini О nuqtadan kuchning t a ’sir chizig‘igacha tushirilgan perpendikular masofaga k o ‘paytmaning tegishli ishora bilan olingan miq d o r ig a aytiladi. Agar kuch jismni О nuqta atrofida soat mili y o ‘n a l i sh ig a q a r am a - q a r s h i y o 'n a li sh d a burishga intilsa, u holda moment musbat deb qabul qilinadi. Agar kuch jismni О nuqta artro f id a soat mili y o ‘nalishi b o 'y ich a burishga intilsa, u holda moment manfiy deb qabul qilinadi. Berilgan F kuchdan О nuqtaga nisbatan olingan kuch momentini quyidagi ifoda bilan belgilaymiz m0( F ). U holda mQ( F )=+- Fh.

2-savol Time is measure of the succession of events and is considered an absolute quantity in New- tonian mechanics. •Mass is the quantitative measure of the inertia or resistance to change in motion of a body. •A particle is a body of negligible dimensions. When the dimensions of a body are irrelevant to the description of its motion or the action of forces on it, the body may be treated as a particle. •A rigid body is a body whose changes in shape are negligible compared with the overall dimensions of the body or with the changes in position of the body as a whole. • Force is the vector action of one body on another. • Scalar quantities are those which only a magnitude is associated. • Vector quantities possess direction as well as magnitude. • A free vector is one whose action is not confined to or associated with a unique line in space. • A sliding vector has a unique line of action in space but not a unique point of application. • A fixed vector is one for which a unique point of application is specified

24-64-104-VARIANT 1-savol