Jawabanmu

2014-08-26T15:02:25+07:00
V = 72 km / jam = 20 m / sekon . rumus jarak s = v x t . 20 m/ s x 40 s = 800 m
2014-08-26T15:05:38+07:00
v = 72 km / jam = 20 m / sekon . rumus jarak s = v x t . 20 m/ s x 40 s = 800 m