Jawabanmu

2014-08-11T21:18:42+07:00
Dit t?,s(jarak)?
v=3t^2-12 (v=0)
0=3t^2-12
12=3t^2
12/3=t^2
4=t^2
t=2
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turunan v=3t^2-12
v=6t
v=6.2
v=12
===
s=v.t
s=12.2
s=24