Respostas

2014-08-27T22:26:41-03:00
  • Usuário do Brainly
2014-08-27T22:27:50-03:00

S = 10 - 4t + 6t²   para t= 5s
S = 10 - 4 . 5 + 6 . 5²
S = 10 - 20 + 6 . 25
S = - 10 + 150
S = 140 m