Respuestas

2011-11-06T16:16:24+01:00

1)      720 kilometros / min = 720000m/60s = 12000 m / s
60m/min = 60m/60s = 1 m / s
54 kmh = 54000m/3600s = 15 m / s

V = 15 m / s
t = 40 s
 
Buscar:
s =?
 

s = v * t
 
cálculo:
s = 15 m / s * 40 = 600