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KRETANJE I RELATIVNOST KRETANJA

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by Sanja Balac on 19 August 2013

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Transcript of KRETANJE I RELATIVNOST KRETANJA

KRETANJE I RELATIVNOST KRETANJA
RELATIVNOST KRETANJA
ZAKLJUČUJEMO DA JE SVAKO MIROVANJE U PRIRODI RELATIVNO. KAO I MIROVANJE, TAKO I KRETANJE NE MOŽE BITI APSOLUTNO. KRETANJE I MIROVANJE OPISUJEMO U ODNOSU NA OKOLNA TELA.TA DRUGA TELA NAZIVAMO REFERENTNA TELA
MEHANIČKO KRETANJE
Zamislite da prolazite ovim putem.Dok se vi krećete, sve oko vas u prirodi miruje.Međutim, znamo da se Zemlja okreće oko Sunca, pa to onda znači da nema tela u prirodi koje miruje.
POKRETNE STEPENICE
POSMATRAJMO KRETANJE NA POKRETNIM STEPENICAMA.U ODNOSU NA SAME STEPENICE MI STOJIMO, ALI U ODNOSU NA PREDMETE VAN STEPENICA, MI SE KREĆEMO.
TO JE PRIMER KOJI GOVORI O RELATIVNOSTI KRETANJA.
VAŽNOST KRETANJA
KADA SE KREĆEMO MI MENJAMO NAŠ POLOŽAJ U ODNOSU NA OKOLNA TELA.
KRETANJE JE VAŽNO ZA NAŠE ZDRAVLJE, A POSEBNO SU BLAGOTVORNE ŠETNJE U PRIRODI
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