mexanik ish
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powerpoint presentation mexanik ish 01 mexanik ish tushunchasi 02 mexanik ishning formulasi va hisoblash usullari 03 mexanik ishga doir misollar va amaliy ahamiyati reja: mexanik ish tushunchasi agar kuch va ko'chish vektorlari o'rtasidagi burchak 90 gradus bo'lsa (θ = 90°), kosinus nolga teng bo'ladi, demak, bajarilgan mexanik ish ham nolga teng bo'ladi. mexanik ish jismga ta'sir etuvchi kuchning ta'siri ostida jismning o'z yo'nalishi bo'yicha ma'lum masofaga ko'chishi natijasida bajariladi, formulasi a=f*d*cos(θ). o'lchov birligi - joul (j), bu 1 nyuton kuchning ta'siri ostida jismning 1 metr masofaga ko'chishida bajarilgan ishga teng, ya'ni 1 j = 1 n*m. mexanik ishning formulasi va o'lchov birliklari mexanik ishning formulasi w = fd cos(θ) boʻlib, f kuchni, d masofani va θ kuch va harak...
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