Zdravím, neviem si dať rady s týmto zadaním. Vedel by mi niekto pomôť. Vopred ďakujem.
Zadanie: Zotrvačník má voľný hriadeľ s polomerom 0,005 m. Určte moment zotrvačnosti zotrvačníka, ak sa pôsobením tiažovaej sily závažia s hmotnosťou 2 kg, ktoré ťahá za motúz navinutý na hriadeli desaťkrát, roztočí s fenkvenciou 20 Hz. (treba brať do úvahy aj kinetickú energiu závažia).
Odpoveď by mala byť 7,5.10^-4 kg.m^2
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