Exista aceleratie
Rezulta ca
[tex]m \times a = f - ff[/tex]
[tex]f = m \times a - ff[/tex]
[tex]f = m \times a - \gamma \times m \times g[/tex]
[tex]f = m(a - \gamma \times g)[/tex]
[tex]f = 5 \times (1 - 0.02 \times 10)[/tex]
[tex]f = 5 \times 0.8[/tex]
F=4