Respostas

2014-03-10T15:50:39-03:00
Resposta

A

Formula

T = D/V

T = tempo
D = distancia
V = velocidade

T = 800 /20
T = 40s

B

T = 800/10
T = 80s

C

T = 800/2,5
T = 320s

D

T = 800/50
T = 16s

E

T = 800/40
T = 20s