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11<br />

<br />

F → 11 <br />

m 1 + m 2 <br />

F<br />

a =<br />

<br />

m 1 + m 2<br />

-<br />

<br />

m 2 → F ′ sF ′ s = F s = F N <br />

F N = m 2 a =<br />

m 2F<br />

m 1 + m 2<br />

m 1 → F → F s F s = F N <br />

<br />

<br />

F − F N = m 1 a<br />

F<br />

F N = F − m 1 =<br />

m 2F<br />

m 1 + m 2 m 1 + m 2<br />

α =30 ◦<br />

<br />

<br />

α<br />

<br />

→ F c → F s <br />

<br />

-<br />

<br />

<br />

<br />

→ F w → F s <br />

<br />

11 Więcej informacji na temat sił zewnętrznych i sił wewnętrznych w układzie znajdziesz w rozdziale 12.<br />

94

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