Physics, 14.01.2021 19:00 derpaderp8795
Un corp de masă m=3kg este deplasat cu viteză constantă pe un plan orizontal cu o forţă de 12 N, care
formează cu orizontala un unghi de 30 0 .
a. Să se reprezinte toate forțele ce acționează asupra corpului
b. Să se aplice principiul acțiunii și reacțiunii
c. Să se calculeze coeficientul de frecare dintre corp şi suprafaţa pe care se deplasează , ştiind că valoarea
forţei de frecare este de 10N. (Se dă g=10 N/kg )
VA ROG
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