Resposta :
[tex]\mathbf{Dados}\Longrightarrow m=500\ \text{g}=0.5\ \text{kg};\ |\vec{a}|=6\ \mathrm{m/s^2}.[/tex]
[tex]\boxed{|\vec{F}|=m|\vec{a}|}\Longrightarrow |\vec{F}|=0.5\times6\ \therefore\ \boxed{|\vec{F}|=3\ \text{N}}[/tex]
[tex]\mathbf{Dados}\Longrightarrow m=500\ \text{g}=0.5\ \text{kg};\ |\vec{a}|=6\ \mathrm{m/s^2}.[/tex]
[tex]\boxed{|\vec{F}|=m|\vec{a}|}\Longrightarrow |\vec{F}|=0.5\times6\ \therefore\ \boxed{|\vec{F}|=3\ \text{N}}[/tex]