Jawabanmu

2014-03-23T18:18:08+07:00
A=delta v/delta t=(7-4)/(2-0)=1, 5 ms^-2
1 5 1
2014-03-23T18:18:52+07:00
Vawal= 4 m/s
Vakhir= 7m/s
t= 2 sekon

Vakhir=Vawal+αt
7=4+α2
3=α2
α=1,5 m/s²
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