Explicación:
1) d=v t
d=30m/s*90s
d=270 m
DATOS
d=270m
t=90s
v=30m/s
_____________________________________
2)v=d/t
v=1200km/4hrs
v=300km/hrs
DATOS
d=1200km
t=4hrs
v=300km/hrs
_____________________________________
3)v=d/t
v=3000km/25hrs
v=120km/hrs
DATOS
d=3000km
t=4hrs
v=300km/hrs
_____________________________________
4)d=v*t
d=75km/hrs*3hrs
d=225km
DATOS
d=225km
t=3hrs
v=75km/hrs
_____________________________________
