Jawabanmu

2014-09-07T22:31:42+07:00
Diket v = 72 km/jam , s = 40 km
ditanya t?
jwab : v=s/t
t=s/v= 40/72= 0,56 jam =33,6 s
2014-09-07T22:42:36+07:00
Dik
V = 72 km/jam = 20 m/s
s = 40 km         = 40000 m
t = ?

t = s /V
t = 40000 m / 20 m/s
t = 2000 sekon atau detik


semoga membantu ^_^