Mouvements et forces – Chapitre 7 – Univers Corrigés des

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Mouvements*et*forces*–*Chapitre*7*–*Univers*
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Corrigés*des*exercices"
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*Relativité*du*mouvement*
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17.*Calculer*la*valeur*d’une*vitesse*moyenne*
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Vm=d
Δt
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Vm=120
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=2×101m's−1.
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21.*Construire*un*diagramme*objetsDinteractions*
a." G0$'2" 0'/" 46'2/" 4K$%3$./" -67$:/" 2$'4" ./" 474%L5/" 46.$31/I" /../" 'H/4%" 460534/" M0H;"
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S$'4" ./" 474%L5/" 46.$31/I" .614M0/" M0H0'/" 46'2/" 4K$%3$./" 4/" 1$KK16N&/" 2H0'/" K.$'L%/I"
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b."G0$'2"0'/"46'2/"4K$%3$./"4H$KK16N&/"2H0'/"K.$'L%/I"3."7"$"0'/"861N/"40KK.95/'%$31/"T.$"
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46'2/J"@/.$"/UK.3M0/".$"562383N$%36'"20"560-/5/'%"2/".$"46'2/J"
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22.*Représenter*un*vecteur*force*
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1×(8,6 ×106)
2,0 ×102=4,3cm:
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