Jawabanmu

2014-05-08T18:54:41+07:00
Kelajuan=jarak:waktu
           =10m:20s
           =0,5m/s
6 4 6
2014-05-08T18:54:59+07:00
Jarak =10m
waktu=20s

jawab= 10:20 = 0.5m/s
4 4 4