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a(t) = (6t² - 2)i + (3t²-2t)j
a(1)=(6-2)i + (3-2)j
= 4i + j
a(1)=
besar kecepatan benda saat t=1s
Kecepatan rata rata 0-2 sekon
v(0) = 0 m/s
v(2)= (2.8 - 2.2)i + (8 - 4)j
= (16 - 4)i + (4)j
= 12i + 4j
Posisi benda saat t=2 s