Modelová Otázka ID 3213 - 
Pro sílu platí:
Správná odpověď je: B, C
Síla je vektorová fyzikální veličina, její značka je F a její fyzikální jednotkou je N (newton). Rozměr newtonu lze určit ze vzorce pro sílu jako
[F] = [m] · [a] = kg · m · s−2.
Síla může prostřednictvím vzorce 
sloužit k výpočtu mechanické práce. Kinetickou energii lze vypočítat podle vzorce 
, síla tedy k tomuto výpočtu potřeba není.
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