Physics, 03.01.2021 20:00 hi105

calculati lucrul mecanic efectuat de forta F vectorial , aplicata unui solid ce se deplaseaza rectiliniu ,pe o distanta egala cu delta x=10 m . Forta are modulul de 20 N si directia ei se formeaza cu directia deplasarii unghiului alfa egal cu : 0,60 , 90 ,120,180 .Cand se efectueaza lucrul mecanic motor si cand se efectueaza lucrul mecanic rezistent?

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