Question

ME AJUDEMM PRA HJJJJ

Answer 1

Resposta:

V0 = velocidade inicial

Vf = velocidade final

t0 = tempo inicial

tf = tempo final

Explicação:

$2)\\dados:\\t0 = 3s\\t1 = 6s\\V0= 3 m/s\\V1 = 9m/s\\\\a=\frac{V1-V0}{t1-t0}\\\\a=\frac{9-3}{6-3}=\frac{6}{3}\\a = 2m/s^{2}$

8)

$dados:\\V0 = 20 m/s\\Vf = 50 m/s\\t0 = 0s\\tf = 5s\\\\a=\frac{Vf-V0}{tf-t0}\\\\a= \frac{50-20}{5-0}\\\\a=\frac{30}{5}\\\\a = 6m/s^2$

9)

$dados:\\v0=8 m/s\\vf= 20m/s\\t0=0s\\tf=3s\\\\a= \frac{Vf-V0}{tf-t0}\\a = \frac{20-8}{3-0}\\a=\frac{12}{3}\\a= 4m/s^2$

10)

$dados:\\V0= 10m/s\\Vf= 20m/s\\t0=0s\\tf=5s\\\\a=\frac{Vf-V0}{tf-t0}\\\\a=\frac{20-10}{5-0}\\\\a=\frac{10}{5}\\\\a= 2m/s^2$

Bons estudos, até a próxima...