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Kika T.
math

Sila

Sila s veľkosťou F = 100 N pôsobí na teleso tak, že so smerom posunutia zviera uhol: a) a = 30o, b) a = 60o, c) a = 90o. Určte vykonanú prácu vo všetkých prípadoch pre dráhu s = 6 m.

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