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Fizika 8 Razred Vaje In Resitve Sile !new! Review

Za premikanje zaboja z maso 40 kg po leseni podlagi potrebujemo silo 80 N. Kolikšen je koeficient trenja? Rešitev: Podlaga deluje s silo podlage: ( F_p = F_g = m \cdot g = 400 \text N ) Trenje: ( F_t = \mu \cdot F_p ) ( \mu = \fracF_tF_p = \frac80400 = 0,2 )

: Iskanje skupne (rezultantne) sile, če sili delujeta v isto, nasprotno ali pravokotno smer. Trenje in upor fizika 8 razred vaje in resitve sile

$$F_rez = F_1 + F_2$$ $$F_rez = 30 , \textN + (-25 , \textN) = 5 , \textN$$ Za premikanje zaboja z maso 40 kg po

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