Keď má jeden magnet silu 10 kg. Čo to znamená? Znamená to to, akú veľkú silu treba vyvinúť na odtrhnutie ho napríklad od železa?
Ak áno, tak potom ak na seba pôsobia dva rovnaké magnety so silou 10 kg, znamená to, že bude treba vyvinúť silu 20 kg na ich odtrhnutie?
A opačne, ak proti sebe pôsobia bude teda treba vyvinúť silu 20kg na ich stlačenie k sebe?
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