Question

Um carro parte de repouso e atinge a velocidade 15m/s2 ao fim de 3 s qual o valor da aceleração

Answer 1

Olá !


Resolução :


$\mathsf{V = V_{o} + at} \\\\\\ \mathsf{ 12 = 0 + a\cdot3} \\\\\\ \mathsf{ 12 = 0 + 3a } \\\\\\ \mathsf{ 0 + 3a = 12 } \\\\\\ \mathsf{ 3a = 12 - 0 } \\\\\\ \mathsf{ 3a = 12 } \\\\\\ \mathsf{ a =\dfrac{12}{3}} \\\\\\ \mathsf{ a = 4~~m/s^{2}}$


$\textbf{RESPOSTA~~:}$ $\mathsf{4~~m/s^{2}}$