madenaz123
17.11.2020 •
Physics
Asupra unui corp, aflat iniţial în repaus, acţionează succesiv
trei forţe: F1=10N, F2=4N şi F3=–15N. Duratele acţiunilor sunt:
t1=4s, t2=14s respectiv t3=2s. Cu ce forţă constantă s-ar obţine
aceeaşi viteză finală a corpului în:
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