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Dobrý deň, potrebovala by som postup, resp. výpočet tohto príkladu. :)
Do telesa guľovitého tvaru, zaveseného zvisle na vlákne narazí vodorovne letiaci náboj, ktorého hmotnosť je 1000-krát menšia ako hmotnosť guľovitého telesa, a uviazne v tomto telese. Aká bola rýchlosť náboja pri náraze, keď sa teleso po náraze vychýlilo zo svojej rovnovážnej polohy tak, že záves zvieral zo zvislým smerom uhol 10°! Dĺžka závesu od miesta upevnenia do stredu gule je l = 1 m.
Výsledok by mal byť v = 550 m.s-1 .
doučma.sk
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