механикa
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"механикa" haqida
1701525217.pptx pm u =× urr f a m = ur r ( ) u u ===== r rur urr r & dm ddp fmamp dtdtdt dp f dt = ur ur 0 0 1 ()()() t t ttftdt m uu =+× ò r 21 12 f f - = r 2 mm f r g = 12 2 0 1 4 qq f r pe = f r 1 q 2 q fmg = urur 2 9,81 м/с g = ( ) pmga =- ururr ( ) pmga =+ ururr tp fkn = fkr =- urr fkx =- ur 1 n i i i c mr r m = = å r r 1 n i i mm = = …
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