voi spune formulele pentru ce se face pana acum la clasa a VI-a
[tex] \ \textless \ l\ \textgreater \ _{SI}=m (metru)
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[tex] \ \textless \ t\ \textgreater \ _{SI}=s (secunda) [/tex]
v=(lf-li)/(tf-ti)=Δl/Δt
[tex] \ \textless \ v\ \textgreater \ _{SI}=[tex] \ \textless \ l\ \textgreater \ _{SI}/[tex] \ \textless \ t\ \textgreater \ _{SI}=m/s (metru pe secunda) [/tex]
[tex] \ \textless \ m\ \textgreater \ _{SI}=Kg (kilogram) [/tex]
[tex] \ \textless \ V\ \textgreater \ _{SI}=[tex] m^{3} [/tex] (metru cub) [/tex]
ρ=m/V
[tex] \ \textless \ ρ\ \textgreater \ _{SI}=[tex] \ \textless \ m\ \textgreater \ _{SI}/[tex] \ \textless \ V\ \textgreater \ _{SI}=Kg/[tex] m^{3} [/tex] (kilogram pe metru cub) [/tex]
[tex] \ \textless \ F\ \textgreater \ _{SI}=N (Newton) [/tex]
K=F/Δl
[tex] \ \textless \ K\ \textgreater \ _{SI}=[tex] \ \textless \ F\ \textgreater \ _{SI}/[tex] \ \textless \ l\ \textgreater \ _{SI}=N/m (Newton pe metru) [/tex]
