Respuestas

  • Usuario de Brainly
2013-11-27T23:52:51+01:00
Vo = ???
Vf = 108km/h = 108(1000m)/(3600s) = 108(5/18) m/s = 30m/s
t = 5seg
a = 2m/s²

=> Por MRUV:

Vf - Vo = at
Vf - at = Vo

Reemplazando datos:

30m/s - (2m/s²)(5s) = Vo

20m/s = Vo

:)