Jawabanmu

2014-09-02T19:50:02+07:00
V1=30 km/jam = 8,3 m/s
v2=60 km/jam = 16,6 m/s
t=5 menit = 300 s
a=v2-v1/t
16,6m/s-8,3m/s/300s
8,3m/s/300s
0,027m/s²

maaf kalo salah
1 4 1
2014-09-02T20:06:48+07:00
A = vt - v0 / t
a = 60 - 30 / 5
a = 30 / 5 menit ( di bw ke jam mnjd 1/12 )

a = 30/1/12 = 30 x 12 / 1 = 360 km/jam